Cars from the 1980s are a good long-term investment.
Credit: Alamy

Allen isn't making any promises, but he predicts that the next trend in classic-car collecting will be now-neglected models from the 'Miami Vice' era. "There's going to be a lot of people who are going to hate what I'm about to say, but I think the next up-and-coming collectible car we'll see in the next five to 10 years is going to be those Eighties performance cars," says Allen. "The 1980s Camaro IROC-Zs, Buick Grand Nationals. Right now they're really affordable, and if you like those cars, then I would definitely recommend buying one. Don't think you're going to be able to turn it around and make all your money next week. That's going to be a five- to 10-year investment."