Out of Germany, the BMW Z8 by Senner Tuning takes a rather exclusive modern classic roadster—under 6,000 Z8s made in the early 2000′s—and tunes it into a new class of its own. Upgrades to the air intake and exhaust, and tweaking of the electronics, add an extra 50 hp and a new top speed of 183 mph, improved from the chip-limited 155 mph. Suspension reworking and new rims and tires address handling and transferring power to the road. The Z8′s sleek lines remain, and the upgrade is presented in can’t-miss basic black. Cost of the conversion is €18,900.