This is the open-top version of the 2-seat eTron coupe shown earlier this year at Detroit. The Spyder features a cut-down windscreen and is actually a plug-in hybrid with a mid-mounted 300-bhp twin-turbo V-6 diesel to boost power and extend the vehicle’s range. Weighing just 3196 lb., the eTron has two electric motors that propel this sports car to 62 mph in 4.4 seconds, while top speed is electronically limited to 155 mph. In pure electric mode, the eTron has a range of about 30 miles, while the diesel enables the vehicle to travel more than 600 miles before refueling.