I think the (original) Mini is a worthy contender for various reasons. It's a true British icon, it was quite groundbreaking in its day, it was an 'everyman's' car, an engineering marvel, fun to drive, etc, etc.
I'd also nominate any 'series' Land Rover (1, 2, 2A, 3). Another British icon that spread to the four corners of the world. Driving one is about as basic as it gets - bu88er all driving aids, noisy, rattly, and you need to be in control all the time


Any takers ?