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The 11 most expensive American cars ever

Here's a Pro Tip for all you would-be classic car investors out there: buy Ferraris. With the Pebble Beach festivities kicking off this week, including any number high end car auctions, we thought it would be entertaining to compile a list of some to the most expensive cars ever sold with the bang of a gavel. Trouble is, once you get past the splendor of everyone's favorite Italian sports car maker, that list is pretty boring.
Ferrari dominates the all-time auction sales list; seven of the top ten most expensive cars sold wear the Cavallino Rampante badge, as well as more than half of the top fifty. Sure, a nearly $30-million Mercedes-Benz W196 racecar might be the new top dog as of last year, but it's even possible that Ferrari could take that title back in Monterey this weekend. Long story short: we think a list of the most expensive American cars ever sold at auction is a lot more entertaining to read. Hell, our list has a friggin' Batmobile on it, how can it go wrong?
Follow on below for the top ten cars that are red, white, blue and a whole lot of green.

IIHS crash tests second F-150 bodystyle

Sometimes, being the king comes with some extra scrutiny. At the urging of Automotive News, the Ford F-150 is the first truck to have multiple cab configurations crash tested by the Insurance Institute for Highway Safety. According to Automotive News, IIHS was preparing to release the crash-test report on the 2015 F-150 after the safety watchdog evaluated the popular, four-door SuperCrew body. However, the agency learned from AN that configuration contained steel bars welded around the front wheels for added protection. Those reinforcements aren't on the other cab variants, and IIHS is now going back to check a SuperCab without the strengthening to check its safety performance, as well. While the added bars might help the SuperCrew score better in the vital but difficult small-overlap front crash test, there's no guarantee that's their sole purpose. As the head of the IIHS crash lab Joe Nolan indicated to Automotive News, if Ford were just trying to beat the system the company could only put the reinforcement on the driver's side where the agency does the small-overlap test. Also, when the National Highway Travel Safety Administration checked the latest F-150, the Feds gave all three cab styles top, five-star overall ratings. Due to the additional testing, IIHS won't have the F-150's scores ready until July, according to Automotive News. Starting next year, the cab variants of other trucks will also starting being crash tested by the agency. Related Video:

Lincoln recycling tree fibers into new MKX armrest

Want to hug a tree, or at least a really small part of one. Then set your arm down on one of those armrests in the 2014 Lincoln MKX crossover. The US automaker is working with Weyerhaeuser and Johnson Controls on a tree-based, cellulose-reinforced polypropylene material used in the component that connects the armrest to the floor console, Wards Auto says. With properties similar to plastic, the tree-based material replaces fiberglass and is about six percent lighter. No big deal for now, but if the material starts getting used for things like battery trays and interior storage covers, that loss in weight may eventually start adding up enough to boost fuel economy a bit, providing a green double bonus. Lincoln parent Ford, which isn't saying how much more (or less?) it costs to use the new material, established its Biomaterials and Plastics Research team in 2001. In 2007, the company began using soy-based foam in car seats used for models such as the Lincoln Navigator and Ford Mustang and has since broadened biomaterials use to components like floormats and cupholder inserts. Ford also used recycled plastic bottles from the 2012 North America International Auto Show for seats in the Focus Electric.