100, 3000

 The Austin-Healey 100 was the first of three cars later called the ‘Big Healeys’ to distinguish them from the later and much smaller Austin-Healey Sprite. It was followed by the Austin-Healey 100-6 and then the Austin-Healey 3000. Despite its name similarity, the Austin-Healey 100-6 has more in common with the subsequent Austin-Healey 3000 than with the original Austin-Healey 100, both mechanically and in appearance. The "100" was named by Healey for the car's ability to reach 100 mph (160 km/h); its successor, the better known Austin-Healey 3000, was named for the 3000cc displacement of its engine.