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Tested: 1990 Chevrolet Corvette ZR-1

Photo credit: TOM DREW - Car and Driver
Photo credit: TOM DREW - Car and Driver

From Car and Driver

From the June 1989 issue of Car and Driver.

The Chevrolet Corvette ZR-1, unless we miss our guess, is going to cost some people at General Motors their jobs.

You ask, how can that be? After all, is this not the Corvette from hell? The King of the Hill? The Ferrari-fighting world-class two-seater from the Motor City? A legend-to-be? Yes, it is that and more. But it still may cause heads to roll.

To anyone who's ever been a part of the corporate world, such a situation is familiar. In all corporations, only one person can do no wrong. That person is the boss — the chairman or president or chief executive officer or maximum leader or whatever the top man is called. A second group, friends of the boss, can do some wrong. A third contingent, those not a part of the power structure, can quite easily commit perceived transgressions against the entrenched moguls. In short, everyone but the boss is at some risk.

Photo credit: TOM DREW - Car and Driver
Photo credit: TOM DREW - Car and Driver

Friends of the boss get in trouble by doing something that doesn't work out. The Outs, those not basking in the shared glow of power, get in trouble by doing something that turns out so outrageously well that the Ins become jealous. Once that happens, the Ins will be out for some heads, determined that no one will make them look bad ever again.

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The whole process of carrying any project — a car, for example — to its conclusion has been reduced to a six-step progression that, once set in motion, is as inexorable as the sunrise: (1) unbridled enthusiasm, (2) sudden disillusionment, (3) total confusion, (4) the search for the guilty, (5) punishment of the innocent, and (6) rewarding of nonparticipants.

But what has all this to do with the ZR-1? Just this: the car is so good that those who didn't want it to happen and those who made it happen anyway have both put their livelihoods on the line. Nothing this good can come out of a large American corporation without causing some shock waves. And we all know what some companies — GM, in particular, has been publicly vocal on the issue — think about anything that rocks the boat. Well, the folks up there on the fourteenth floor had best plan on getting wet feet, because if any car can slosh saltwater over the gunwales of the corporate lifeboat, it's this one.

Photo credit: TOM DREW
Photo credit: TOM DREW

"If you don't keep pushing the envelope, the limits of what's technically feasible," Chevy's chief engineer Fred Schaafsma told us, "you're going to fall behind." Hear, hear. If General Motors engineering could — or would — improve upon a basic sedan to the extent that the Corvette engineering team improved upon the existing Corvette, the crowds at GM dealerships would cause a nationwide traffic jam.

Dave McLellan, Corvette chief engineer, says, "The ZR-1 makes the statement that we can do things today that no one even dreamed could be done ten or twenty years ago. We've achieved a spectacular level of performance and are still able to meet or exceed all government standards for fuel economy, safety, noise, emissions, and so on." The ZR-1 engineering team has done nothing less than prove that Detroit can indeed run with the big dogs. The car is, and deserves to be, a source of pride to U.S. enthusiasts.

Photo credit: TOM DREW - Car and Driver
Photo credit: TOM DREW - Car and Driver

The new ZR-1 can provide the best driver in the world with all the slam-bam power that he could ask for, yet its personality and demeanor are such that drivers who are less than world-class — a group that, by our observation, includes a great many owners of high-performance cars — are remarkably well protected from themselves.

Does this mean you can't get yourself in trouble behind the wheel of a ZR-1? No. Does it mean that you have to be suicidal to fall victim to its power and speed? Yes. Left to its own devices, the ZR-1 is at once the most exciting and responsible high-performance car ever conceived in Detroit, let alone ever built. It feels glued to the pavement, and it goes as if it were powered by equal parts lightning and solid rocket fuel. It even looks tough, if you stand behind it so you get the prime view of the rear tires — tires so fat that only the differential housing seems to prevent their meeting in the middle. The ZR-1 is the kind of machine that will send the safety Nazis to their daybeds with the vapors, even as it brings car lovers to their feet clapping and cheering.

The last of the ZR-1's umpteen auto-show introductions (Los Angeles, Detroit, Chicago) took place in Geneva, Switzerland, of all places, and — at long last — involved a long-distance drive in the car we had only driven for a limited distance on the test track. The choice of Europe as an introductory venue permitted us to experience the Corvette in the arena dominated by Ferraris, BMWs, and big, whistling Mercedes sedans — an arena otherwise populated by small, nimble cars that run fast on the autobahns and autoroutes and almost as fast on the twisting, sometimes rough secondary roads. Would this American beast still pound its chest after such an encounter?

Photo credit: TOM DREW
Photo credit: TOM DREW

Certainly it has the equipment, on paper and in fact, to compete anywhere. To review, the Corvette ZR-1 is a rear-drive sports car powered by a 32-valve, 5.7-liter, port-fuel-injected V-8 engine with an aluminum block and aluminum heads. The engine was designed by GM's Group Lotus Division, was further developed by GM, and is built under contract by Mercury Marine in Oklahoma, a facility with more than a passing familiarity with high-muscle aluminum engines.

The 32-valve V-8 engine, "LT5" on the options sheet, has two camshafts on each of its aluminum heads. Maximum horsepower — achieved at 6200 rpm — is 380. The torque curve shows a maximum of 370 pound-feet at 4200 rpm, and the band feels about as wide as, say, Utah.

The engine's performance is best described as otherworldly. Its power just plain warps the mind. The ZR-1 has the ability to take you from 0 to 60 mph in 4.5 seconds and from a stop to 100 in 10.4 seconds. We also recorded a 0-to-150-mph time of a tick under half a minute. Top speed, for the adventurous, is a sizzling 175 miles per hour.

Photo credit: TOM DREW - Car and Driver
Photo credit: TOM DREW - Car and Driver

Behind the engine is a six-speed manual transmission that's as sweet as anything mechanical you're likely to lay a hand on. Capable of withstanding 425 pound-feet of torque, the six-shifter is the same manual gearbox used in all 1989 Corvettes, but it's heaven sent for the Corvette from hell.