One track in Gloucestershire runs birthday parties events. The single thing that decides whether this works is age and height, and it catches people out constantly.
Bristol
An indoor circuit in east Bristol running Sodi GT5 karts, with a double-level layout for drivers tall enough to use it. Being under cover, it runs the same in February as in July: the obvious pick locally if you don't want a session called off for weather.
Price not published
Sparkford, near Yeovil, Somerset
A 400-metre outdoor circuit beside Haynes International Motor Museum, laid on the museum's own test track. Petrol karts on tarmac, and a layout with proper braking zones and room to overtake.
Chippenham, Wiltshire
M4 Karting is an indoor kart track inside Hangar 88 on the former Hullavington Airfield, north of Chippenham in Wiltshire. The circuit is 268 metres long with seven corners.
Woodbury Salterton, near Exeter, Devon
Raceworld is a 400 metre indoor circuit at Woodbury Salterton, a few miles outside Exeter, and it has been trading since 1994. The layout mixes fast straights with flowing and technical corners and includes a flyover bridge.
Price not published
Always check both. The gap between a 1.20m and a 1.40m minimum is the difference between an eight-year-old driving and watching.
Purpose-built junior karts fit smaller drivers properly. Some tracks also fit remote speed limiters so staff can build a nervous child up gradually.
Children mixed in with adults have a worse time. Ask whether junior sessions run separately.
Food, a private room, a podium and a trophy make it a party. Without them it is a driving session with cake in the car.