The Mini
Ten feet long and somehow room for four.
Issigonis turned the engine sideways, put the wheels at the corners, and changed small car design permanently.
The Mini was a response to the Suez fuel crisis and ended up as a fashion object. Everyone from the royals to the Beatles had one, which is not a sentence you can write about many cars.
The sliding windows, the boot lid that dropped down to carry more, the starter button on the floor. Cold, noisy, leaked, and universally adored.
Cost back then
£496
Goes for now
£6,000–£30,000+