While holidaying in Budapest after attending Automechanika I chanced upon the MVM Energia Futam (future energy race) being run on roads near the Hungarian Parliament buildings.
Despite limited Hungarian, I wrangled a media pass so I could tour the pits and get some interesting pictures of the technology.
There were multiple classes, depending on the power source and sophistication, with either electric power (from a number of electric drill motors up to more sophisticated water-cooled motors) and also a compressed air class with industrial compressed air cylinders driving piston and crank assemblies, again from fairly basic to highly technical.
Most of the participants were younger, with many I suspect students, but the racing was serious, with speeds up to 90 km/h on the street circuit.
Map of circuit
From wonderful to weird
Pit crew practicing speedy air tank swap
Electric motor go-kart
Sophisticated air power
Serious tuning and performance monitoring
Go Trabi, go!
Ready to race
The real deal