And it can still be done with a silky-smooth twin-turbocharged V12 engine under the hood. If we were to guess which car had the largest trunk prior to making this list, the Maserati Quattroporte ...

That's the case with one of Honda's most unique JDM designs, a compact yet bold creation that featured something truly unexpected: a foldable, motor-powered scooter tucked neatly into its cargo area.

So what happened to the Chrysler Turbine Car? Heck, what happened to the very concept of putting jet engines in cars period?

This means, cars with jet engines (just like what the Jetsons had) are going to be on our roads in the not too distant future.