Built by students at the University of New South Wales, the Sunswift IV (known as IVy, though the pronunciation is a mystery ("four-y"? "ivy"?)) was designed specifically to break the existing speed record of 49.09 mph, set by the GM Sunraycer way back in 1987. That required removing the IVy's 55-pound battery that's typically included to assist with longer trips, which threw off the car's balance a bit. But the reduced weight apparently helped, since the car managed an average of 55.14 mph in two trips (going in opposite directions) on a 2,500-meter track.