Cobra Daytona T-shirt - The first Cobra Coupe was completed early in 1964 and extensively tested on the track. The testing revealed that although somewhat unusual, the beautiful design worked remarkably well and it clocked a 183 mph top speed. The Cobra Daytona has not looked back since, unfortunately for us though they cost a hell of a lot of cash.
The best T-shirt image? Definitely, Unofficial? Hideously

KIDS - AC Cobra Daytona '60's iconic LE MANS Race car outline T-shirt