|There is not a much better example of British vehicular eccentricity and thrift than the Reliant Supervan III. Nor, frankly, is there a better example of a vehicle more likely to find itself on its side after some aggressive driving. Reliant vehicles, like the Robin, Regal, and utilitarian Supervan, are three-wheeled and built around a motorcycle engine. Drivers only need have a motorcycle license to pilot a Reliant on public roads and even though 29 hp is not much power, it is enough to propel the diminutive ride to highway speeds. With even a spare wheel, seat belts, and a passenger seat as optional, you won’t find much in the way of luxury in the Supervan III. What you will find is a drive like none other.|
— Official description 
The Supervan III is a variant of the Reliant Regal three-wheeler car. It was replaced by the Reliant Robin in 1973.
|Speed 3.0||Handling 3.6||Acceleration 3.4||Launch 4.3||Braking 3.0||D 100|
|Barn find: Redstone Airport (West)|
|Top Speed: 76.2 mph (122.6 km/h)||Championship: Cult Classics|
|Acceleration 0-60 mph (0-97 km/h): 19.000 secs.||0-100 mph (0-161 km/h): 0 secs.|
|Braking 60-0 mph (97-0 km/h): 207.5 ft (63.2 m)||100-0 mph (161-0 km/h): 0 ft (0 m)|
|Lateral G's 60 mph (97 km/h): 0.67 g||120 mph (193 km/h): 0.58 g|
|Conversion - Engine|
|I4 Motorbike Engine)|
|Conversion - Wide Bodykit|
- It receives training wheels at the front with the Widebody Kit Upgrade.