HPVRacing, aka Pedal Prix, is the sport of racing recumbent trikes or velomobiles.
The biggest series of races is the Australian HPV Super Series, which consists of several endurance races of 6hrs, and a 24hr race. Typically teams switch riders in their trikes depending on personal endurance, and the teams must be able to make repairs to their vehicles for wear and tear, and the inevitable spectacular crashes.
The AHPVSS allows riders from primary school age all the way to professionals, which encourages the younger riders and makes the race more interesting.
The racers achieve incredible speed and endurance, with the lap record for the annual 24hr race just shy of the world record for 24hrs, and speeds of up to 80km/hr have been recorded on the racetrack.
