Alfa Romeo Spider - The Graduate
The Spider was launched in 1966 and became famous the following year when it was driven in The Graduate by Dustin Hoffman, whose character has an affair with an older woman (Anne Bancroft, actually only six years older than Hoffman) before running off with her daughter (Katharine Ross).
In some scenes the car sounded as if it had a large V8 under the bonnet, though in fact Spiders only ever had four-cylinder engines of up to two litres.
The Spider remained in production for over a quarter of a century. Its role in the film remained so important that Alfa developed a Graduate special edition in the mid 1980s.