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How do you beat a slew of Fox-Body 5.0 Mustangs that seemingly dominated the roads in the late '80s? You take a 454 cu.-in. big-block engine and stuff into a C4 Corvette and call it "Big Doggie". An experimental vehicle used to determine how to convert from a small block to a big block. Its 454 big block V8 along with its orange paint make this high horsepower engineering study a one-of-a-kind standout in Corvette history. The car had as much HP as the '90 ZR-1 did and it was named "ZR-2" or "Big Doggie". Old dog, new tricks joke?
Another decade – another milestone anniversary edition Corvette. However, the 2003 model year was especially significant as it marked the 50th year of the Corvette’s production at Chevrolet.  To commemorate a half-century of manufacturing, every Corvette built in 2003 was adorned with special “50th Anniversary” badging – a unique “50” badge on each of the front fenders above the bodyside coves, and a special crossed flags badge that included “50 Anniversary” badging.
The 638-hp, 6.2-liter supercharged V-8 LS9 engine features such niceties as titanium connecting rods and intake valves, a forged steel crankshaft, and a dry-sump oil system. The suspension has magnetorheological shocks that enabled Chevrolet engineers to use softer springs than in the conventionally damped Z06. Corvette's top dog model is no joke and an accomplished sports car that puts up a good fight against the world's best.
There were several successful attempts to build a convertible ZR-1, most of them by private people. The DR-1 was a GM prototype to test the structural integrity of the ZR-1 chassis when it would be topless. The car was built by American Sunroof Corporation (ASC) for Don Runkle, who was the vice-president of Advanced Engineering Staff, which explains the “DR-1” designation. It was a standard convertible transformed to ZR-1 specs.
2013 C6 Chevrolet Corvette ZR1
The 638-hp, 6.2-liter supercharged V-8 LS9 engine features such niceties as titanium connecting rods and intake valves, a forged steel crankshaft, and a dry-sump oil system. The suspension has magnetorheological shocks that enabled Chevrolet engineers to use softer springs than in the conventionally damped Z06. Corvette's top dog model is no joke and an accomplished sports car that puts up a good fight against the world's best.