And 20 years later, it's proving to have timeless roadster design.

Select a vehicle trim below to get a valuation. The BMW Z4's low starting price brings it in for less than such heavyweights as the Porsche 718 Boxster and Chevy Corvette but pricier than the Mazda ...

The Mazda Miata is an icon, but does that mean its values have held up over the past five years? Or can you pick up a ...