The classically proportioned XK150 boasted a leather-trimmed dashboard, aluminum center dash panel, and Jag's famed inline six-cylinder engine displacing 3.4 liters. In time, the engine grew to 3.8 liters, generating 265 hp and making possible a 135-mph top speed. Jaguar produced just 2,265 XK150 convertibles, but its popularity (and profitability -- the highest of the early Jags) paved the way for the groundbreaking XK-E.
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