From Connecticut Regulations:

Sec. 14-15a-1. Special registration

As used in Sec. 14-15a-2, the term "special registration" shall mean a motor vehicle registration issued by the Commissioner of Motor Vehicles for motor vehicles registered pursuant to the following Sections of the Connecticut General Statutes: … (2) Sec. 14-20, number plates for antique, rare or special interest motor vehicles; …

From Connecticut Statutes:

C.G.S.A. § 14-16a. Inspection of older vehicles before or upon transfer of ownership.
Historical or special interest fire apparatus. Antique, rare or special interest motor vehicles. Modified antique or composite motor vehicles

(a) The commissioner may require that each motor vehicle registered in this state which is ten model years old or older shall, within thirty days before transfer of ownership or upon such transfer, be presented for inspection, as directed by the commissioner, at any Department of Motor Vehicles office or any official emissions inspection station or other facility authorized by the Commissioner of Motor Vehicles to conduct such inspection. The vehicle shall be inspected to determine whether it is properly equipped and in good mechanical condition before registration is issued to the new owner of the vehicle. If the commissioner authorizes the contractor that operates the system of official emissions inspection stations or other business or firm, to conduct the safety inspections required by this subsection, the commissioner may authorize the contractor or other business or firm to charge a fee, not to exceed fifteen dollars, for each such inspection. The commissioner may authorize any motor vehicle dealer or repairer, licensed in accordance with section 14-52 and meeting qualifications established by the commissioner, to perform an inspection required by this section or to make repairs to any motor vehicle that has failed an initial safety inspection and to certify to the commissioner that the motor vehicle is in compliance with the safety and equipment standards for registration. No such authorized dealer or repairer shall charge any additional fee to make such certification to the commissioner. If the commissioner authorizes any such dealer or repairer to conduct safety inspections, such licensee may provide written certification to the commissioner, in such form and manner as the commissioner prescribes, as to compliance of any motor vehicle in its inventory with safety and equipment standards, and such certification may be accepted by the commissioner as meeting the inspection requirements of this subsection.

(b) The following vehicles, upon transfer of ownership, shall be presented for inspection, as directed by the commissioner, at any Department of Motor Vehicles office or any official emissions inspection station authorized by the Commissioner of Motor Vehicles to conduct such inspection: (1) All motor vehicles ten model years old or older which are registered in this state and which were originally used or designed as fire apparatus and which are of historical or special interest as determined by the commissioner, (2) all antique, rare or special interest motor vehicles, and (3) all modified antique motor vehicles. Any such vehicle shall be inspected to determine whether it is in good mechanical condition before registration can be issued to the new owner of such vehicle. The determination of the mechanical condition of a vehicle described in subdivisions (1) and (2) of this subsection shall be made by inspecting only the vehicle's original equipment and parts or the functional reproductions of the original equipment and parts. The mechanical condition of modified antique motor vehicles shall be determined by inspecting the original equipment and any functioning replacements of such equipment. The model year designation for the purpose of registration of a modified antique motor vehicle or a composite motor vehicle shall be the model year that the body of such vehicle most closely resembles. If the commissioner authorizes the contractor that operates the system of official emissions inspection stations or other business or firm, except a licensee of the department, to conduct the safety inspections required by this subsection, the commissioner may authorize the contractor or other business or firm to charge a fee, not to exceed fifteen dollars, for each such inspection. The commissioner may authorize any motor vehicle dealer or repairer, licensed in accordance with section 14-52 and meeting qualifications established by the commissioner, to make repairs to any motor vehicle that has failed an initial safety inspection and to certify to the commissioner that the motor vehicle is in compliance with the safety and equipment standards for registration. No such authorized dealer or repairer shall charge any additional fee to make such certification to the commissioner.

C.G.S.A. § 14-20. Number plates for antique, rare or special interest motor vehicles. Issuance of number plates corresponding to year of manufacture. Registration. Regulations

(a) The Commissioner of Motor Vehicles may issue special number plates for antique, rare or special interest motor vehicles, including antique, rare or special interest motor vehicles that have been modified, such special number plates to be issued on a permanent basis. The commissioner shall charge a fee for such plates which shall cover the entire cost of making the same. An owner of such antique, rare or special interest motor vehicle may use such owner's own porcelain number plate in place of the plates issued by the commissioner provided (1) such plate was originally issued by the department, and (2) such owner files with the commissioner a description and the number of such plate and any additional information the commissioner may require.

(b) Notwithstanding the provisions of subsection (a) of this section, section 14-18 and section 14-21b, the owner of such antique, rare or special interest motor vehicle may be authorized by the commissioner to display a number plate originally issued by the Commissioner of Motor Vehicles corresponding to the year of manufacture of such antique, rare or special interest motor vehicle. The commissioner shall issue a certificate of registration, as provided in section 14-12. Such registration shall be valid, subject to renewal, as long as the commissioner permits. Thereafter, the registration number and number plates, if any, which were assigned to such motor vehicle before such registration and number plates were issued under this section, shall be in effect. Each such number plate authorized for use by the commissioner shall be displayed in a conspicuous place at the rear of such motor vehicle at all times while the vehicle is in use or operation upon any public highway. A sticker shall be affixed to each such number plate to denote the expiration date of the registration, unless the commissioner authorizes the sticker, or other evidence of the period of the registration, to be placed elsewhere or carried in such motor vehicle. Such sticker may contain the corresponding letters and numbers of the registration and number plate. The commissioner may adopt regulations, in accordance with chapter 54,1 to implement the provisions of this section.

C.G.S.A. § 14-103a. Inspection of reassembled, altered or reconstructed vehicles. Composite vehicles. Vehicles made by unlicensed manufacturers

Any motor vehicle that (1) has been reconstructed, (2) is composed or assembled from the several parts of other motor vehicles, (3) the identification and body contours of which are so altered that the vehicle no longer bears the characteristics of any specific make of motor vehicle, or (4) has been declared a total loss by any insurance carrier and subsequently reconstructed, shall be inspected by the commissioner to determine whether the vehicle is properly equipped, in good mechanical condition and in the possession of its lawful owner. The model year designation for the purpose of registration of a composite motor vehicle inspected in accordance with this section shall be the model year that the body of such composite motor vehicle most closely resembles. Such vehicle shall be presented for inspection at any Department of Motor Vehicles office to conduct such inspection. The commissioner may require any person presenting any such reassembled, altered or reconstructed vehicle for inspection to provide proof of lawful purchase of any major component parts not part of the vehicle when first sold by the manufacturer. The commissioner may require, in accordance with the provisions of this section, the inspection of any other motor vehicle that has not been manufactured by a person, firm or corporation licensed in accordance with the provisions of section 14-67a. The fee for any inspection required by the provisions of this section shall be eighty-eight dollars. The inspection fee shall be in addition to regular registration fees. As used in this section, "reconstructed" refers to each motor vehicle materially altered from its original construction by the removal, addition or substitution of essential parts, new or used.

C.G.S.A. § 14-166. Exempted vehicles … (b) The acquisition of a certificate of title for any motor vehicle older than twenty model years old shall not be required. The commissioner shall issue a certificate of title for a motor vehicle older than twenty model years old at the request of the owner and charge such owner any fees required by section 14-192.

C.G.S.A. § 14-192. Fees

(a) The commissioner shall be paid the following fees: (1) For filing an application for a certificate of title, twenty-five dollars; (2) for each security interest noted upon a certificate of title or maintained in the electronic title file pursuant to subsection (b) of section 14-175, ten dollars; (3) for each record copy search, twenty dollars; (4) for each assignment of a security interest noted upon a certificate of title or maintained in the electronic title file, ten dollars; (5) for an application for a replacement certificate of title, twenty-five dollars, provided such fee shall not be required for any such replacement certificate of title (A) which is requested on a form prepared and signed by the assessor in any town for purposes of such proof of ownership of a motor vehicle as may be required in accordance with section 12-71b, or (B) in connection with an application submitted by a licensed dealer in accordance with the provisions of subsection (c) of section 14-12 or section 14-61; (6) for an ordinary certificate of title issued upon surrender of a distinctive certificate, ten dollars; (7) for filing a notice of security interest, ten dollars; (8) for a certificate of search of the records of the Department of Motor Vehicles, for each name or identification number searched against, twenty dollars; (9) for filing an assignment of security interest, ten dollars; (10) for search of a motor vehicle certificate of title record, requested by a person other than the owner of such motor vehicle, twenty dollars; and (11) for a bond filing under section 14-176, twenty-five dollars.

(b) If an application, certificate of title or other document required to be mailed or delivered to the commissioner under any provision of this chapter is not delivered to the commissioner within ten days from the time it is required to be mailed or delivered, the commissioner shall collect, as a penalty, an amount equal to the fee required for the transaction.

C.G.S.A. § 14-176. Withholding of certificate. Bond requirement

If the commissioner is not satisfied as to the ownership of the vehicle or that there are no undisclosed security interests in it, the commissioner may register the vehicle but shall either:

(1) Withhold issuance of a certificate of title until the applicant presents documents reasonably sufficient to satisfy the commissioner as to the applicant's ownership of the vehicle and that there are no undisclosed security interests in it; or (2) as a condition of issuing a certificate of title, require the applicant to file with the commissioner a bond in the form prescribed by the commissioner and executed by the applicant, and either accompanied by the deposit of cash with the commissioner or also executed by a person authorized to conduct a surety business in this state. The bond shall be in an amount equal to twice the value of the vehicle as determined by the commissioner and conditioned to indemnify any prior owner and lienholder and any subsequent purchaser of the vehicle or person acquiring any security interest in it, and their respective successors in interest, against any expense, loss or damage, including reasonable attorney's fees, by reason of the issuance of the certificate of title of the vehicle or on account of any defect in or undisclosed security interest upon the right, title and interest of the applicant in and to the vehicle. Any such interested person has a right of action to recover on the bond for any breach of its conditions, but the aggregate liability of the surety to all persons shall not exceed the amount of the bond. The bond, and any deposit accompanying it, shall be returned at the end of five years or prior thereto if the vehicle is no longer registered in this state and the currently valid certificate of title is surrendered to the commissioner, unless the commissioner has been notified of the pendency of an action to recover on the bond.

C.G.S.A. § 12-71. Personal property subject to tax. Computer software not subject to tax.
Determination of situs of motor vehicles and snowmobiles for tax purposes

(a) All goods, chattels and effects or any interest therein, including any interest in a leasehold improvement classified as other than real property, belonging to any person who is a resident in this state, shall be listed for purposes of property tax in the town where such person resides, subject to the provisions of sections 12-41, 12-43 and 12-59. Any such property belonging to any nonresident shall be listed for purposes of property tax as provided in section 12-43. Motor vehicles and snowmobiles shall be listed for purposes of the property tax in accordance with subsection (f) of this section.

(b) Except as otherwise provided by the general statutes, property subject to this section shall be valued at the same percentage of its then actual valuation as the assessors have determined with respect to the listing of real estate for the same year, except that any antique, rare or special interest motor vehicle, as defined in section 14-1, shall be assessed at a value of not more than five hundred dollars. The owner of such antique, rare or special interest motor vehicle may be required by the assessors to provide reasonable documentation that such motor vehicle is an antique, rare or special interest motor vehicle, provided any motor vehicle for which special number plates have been issued pursuant to section 14-20 shall not be required to provide any such documentation. The provisions of this section shall not include money or property actually invested in merchandise or manufacturing carried on out of this state or machinery or equipment which would be eligible for exemption under subdivision (72) of section 12-81 once installed and which cannot begin or which has not begun manufacturing, processing or fabricating; or which is being used for research and development, including experimental or laboratory research and development, design or engineering directly related to manufacturing or being used for the significant servicing, overhauling or rebuilding of machinery and equipment for industrial use or the significant overhauling or rebuilding of other products on a factory basis or being used for measuring or testing or metal finishing or in the production of motion pictures, video and sound recordings. …