1970 Chevrolet Corvette.

1970 Chevrolet Corvette.

This is another car I got to hear run as it arrived, which was a wonderful experience !

Chevrolet Corvette race car.

Chevrolet Corvette race car.

Class 25A: Sports vehicles thru 1960.

Class 25 is for Sports vehicles, which the AACA defines as, "a small, usually two-seat, two-door automobile, designed for spirited performance and nimble handling. There are five sub-classes that are divided according to year and whether or not the vehicle is "open" or "closed."

1934 MG PA.

1934 MG PA.

According to the sign displayed with the car, only 1,973 PAs were produced during the car's two year model run.

This car underwent a 5-year authentic restoration beginning in 2013.

The car was displayed with a tool kit.

Power comes from an 847 cc I4 that makes 36 hp. That may not sound like much. But the car only weighs 1,625 pounds.

The Volumex supercharger was added during the 5-year restoration.

I like the design of the bulkhead. Opening the hood not only allows access to the engine compartment, but also to the front of the passenger compartment.

A very rare 1934 MG PA.

Class 25B: Sports vehicles, open, 1961 - 1969.

1961 Jaguar E-Type.

I noticed right away that this first-year E-Type, although quite beautiful, wasn't stock. With the AACA's emphasis on authentic restorations, I wondered how this car could be in a judged class with so many modifications and changes. But then I noticed "DNJ," (i.e. Do Not Judge), where the judging sticker would be on the display sign.

This is the car that Enzo Ferrari called, "the most beautiful car ever made." And it's hard to argue with him.

The E-Type was introduced in 1961. Series I production continued through 1968 when the Series II was introduced. That was followed by the Series III in 1971. The early Series I cars seem to be the most valuable of the model run.

The original 3.8L I6 was replaced at some point with a later 4.2L I6.

1961 Jaguar E-Type.

A pair of Sunbeam Alpines.

The first car is a First car is a 1965 model.

1965 Sunbeam Alpine.

The second car is a 1966 model.

1966 Sunbeam Alpine.

1962 Mercedes-Benz 190SL.

1962 Mercedes-Benz 190SL.

The 190SL is powered by a 1.9L I4 that makes 120 hp. The early 190SL cars have shot up in value lately, selling into the 6-figures. But that's "affordable" compared to its big brother 300SL which routinely sells for 7-figures.

1965 Sunbeam Tiger.

1965 Sunbeam Tiger.

The car that Maxwell Smart drove in the "Get Smart" TV series from back in the day got its start for the 1965 model year. Sunbeam wanted to give it's beautiful Alpine a little more oomph. When it was discovered that there was enough room under the hood for a Ford V8, a call was made to none other than Carroll Shelby to make it work. Shelby put a prototype together that was powered by Ford's 260 CID V8 that made 164 hp.

The car turned a lot of head when it debuted in 1965. The first 3,800-or-so cars, (Mark I), were fitted with the Ford 260. The next 2,700-or-so cars, (Mark IA), had the same Ford 260, but featured an updated body design. The last 600-or-so cars, (Mark II), received more body updates and were fitted with Ford's 289 CID V8 that made 200 hp. Production lasted through 1967 with approximately 7,085 cars produced over the model run.

This car has the Ford 260 CID V8 that, according to the car owner, now makes around 220 hp.

1965 Sunbeam Tiger.

1965 Sunbeam Tiger.

Class 25C: Sports vehicles, Closed (including Targa and T-Tops), 1961 - 1969.

1964 Porsche 356SC.

1964 Porsche 356SC.

This car is from the fourth generation of Porsche's first production car. Development began in 1948 for the first generation Porsche 356, now known as the "Pre-A." Production lasted through 1955, after which the 356A was introduced. The 356B followed for 1960, and the final edition 356C arrived in 1964. Porsche phased in continuous updates and improvements, and offered special editions throughout the model run, one of which was the car seen in the photos above, the 356SC.

The 356 had always been known as a lightweight, nimble, and extremely capable machine. By the time the 356SC was introduced in 1964, engine size had increased to 1.6L, and power had risen to 95 hp. That may not sound like much until you realize that the car weighs a mere 2,000 pounds.

1969 Iso Grifo.

1969 Iso Grifo.

Italian automaker Iso Autoveicoli S.p.A. was founded in 1953 by engineer Renzo Rivolta.

The stunning Grand Tourer seen in the photos above and below is a very rare car, one of 412 produced over the Grifo's model run from 1965 - 74. But the journey to get to that point makes you scratch your head.

Italian engineer Renzo Rivolta was building refrigeration units and household appliances during the WWII era. Following the war, production shifted to the transportation industry with motorcycles, scooters, and even a snowmobile.

Rivolta jumped into the automobile business in 1953 when he founded Iso Autoveicoli S.p.A. His first car ? Steve Urkel's car of choice, the Isetta bubble car. Rivolta was looking to sell a small, economical, and inexpensive car to the masses. The Iso Isetta was so well received that Rivolta eventually licensed production of the car to other companies around the world. The most successful of these came from BMW in Germany where more than 161,000 BMW Isettas were produced over the model run.

Once out of the bubble car business, Rivolta teamed up with engineer Giotto Bizzarrini (former Ferrari engineer for the legendary 250 GTO), designer Giorgetto Giugiaro (designer of the De Tomaso Mangusta, BMW M1, and DeLorean), and chassis builder Bertone to do a complete 180. The result was the 1963 Iso IR300, a stunning high-performance 2 + 2 Coupé.

But unlike the typical Italian supercar, an Iso could actually be driven reliably thanks to the 327 CID V8 under the hood and 4-speed manual transmission lifted from the Chevrolet Corvette.

Rivolta followed the IR300 with the Grifo, a "gran turismo" 2-door coupe also powered by Chevrolet. The 327 CID V8 seen in the photos above makes 300 hp and sends power to the rear wheels via the Corvette's M21 4-speed manual transmission.