It’s still in concept stage, but the 2009 300 SL Panamericana from Gullwing-America promises to update the original “with technology from 50 years later.” If built, it would have a 300 hp 4.4 liter V8 and five-speed ZF automatic transmission from BMW, while riding on 20×9.5 inch forged wheels. Cost would be around $150k.