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This car was created by Doug Rippie. His claim to fame was the Corvette Challenge Series. Rippie loved racing Corvettes in the US, but, his life-long dream was to take on the world-class marques at Le Mans. So, when Chevy introduced the C4 ZR1 the opportunity was opened up. Via his collaboration with MerCruiser and Lotus Engineering, all with Chevy’s blessing, the "Black Widow" program created special street and race versions of the LT5 engine. This engine made 525hp.
2009 Chevrolet Corvette ZR1
The ZR-1 returned with the 1990 Corvette lineup after an eighteen year hiatus.  This time, it featured a special LT5 engine that had been developed by Lotus (which, at the time, had been a subsidiary of General Motors.) The LT5 engine featured an all-aluminum block, four overhead camshafts, and 32 valves. It also featured an air management system which enabled the car to maintain proper operation while closing off half of its fuel injection system.
2019 Corvette ZR1 in Sebring, Orange
The Corvette ZR1 features an LT5 6.2L V-8 supercharged engine which dramatically advances the supercharging technologies first introduced in the 2009 sixth-generation Corvette ZR1 and continued with the 2015 seventh-generation Z06 Corvette. The engine, which is officially rated with an SAE-certified 755 horsepower (563 kW) and 715 lb-ft of torque (969Nm), establishes an entirely new benchmark in Chevrolet performance.
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.
The early C4's had their problems, what with the 1984 Cross-Fire Injection and its unusual 4+3 manual transmission. By the late 1980's, the fourth-generation Corvette had evolved into a more desirable automobile, thanks in part to the arrival of the ZR-1. 
2013 427 Collector Edition Convertible
The 2013 Corvette 427 Convertible served double-duty as a commemorative edition model.  While it marked the departure of the sixth-generation Corvette. The real selling-point was the powerplant at the heart of the car - a 427-cubic-inch (7.0L) LS7 engine, the same engine used in the C6 Corvette Z06.  Rated at 505 horsepower (377kW) and 470lb.-ft of torque (637 Nm), this 427 was the most powerful engine GM had ever installed in a production Corvette convertible to date.
2017 corvette c7 z06
You can find a newer, low-mileage, Corvette at a price point that is reasonable when looking at a C7 vs the competition. You'll pay more than you would for a Mustang, Challenger or Camaro, but you'll get a lot more car for the money too.