If Only I Had a Garage (and a French Mechanic): 1957 Panhard Dyna Z
Front-wheel-drive, independent suspension all around, all-aluminum air-cooled flat two cranking out upwards of 50 horsepower (aided in part by hemispherically shaped combustion chambers — it's a hemi!), and they'd been using all this technology for ten years by this point.
More importantly, look at the interior! And check out this spectacular promotional lit! (Scroll down a little bit, you'll see it.) More photos, please.
Click on the pic to check out the auction.