Not all classic cars have the same potential as an investment, but there are rock-solid choices that are guaranteed to go up ...

with classic American iron from the 1950s falling behind. Anyone who follows the collector car market will tell you that prices are up, and demand is high. Indeed, Scottsdale's 2014 auction week ...

Think you know classic American cars? We've zoomed in on the most iconic grills and we're betting you can't name them all. Test your knowledge and take a trip down memory lane down below.

5. **Mercedes-Benz 300SL Gullwing**: This legendary sports car from the 1950s is known for its unique gullwing doors and impressive performance. Originally priced at $7,300, today it can sell for over ...