Front, mid and rear-engined chassis layouts are all permitted.
Four-stroke motorcycle engines from Honda or Kawasaki (pre-2010), Suzuki or Yamaha (pre-2009). Two-stroke designs, multi-engine and forced induction are not permitted. Engines and their ECUs must remain entirely standard and unmodified, but dry sump lubrication and exhaust/induction systems are free.
Suspension design and system is free, although ‘active’ suspension is not permitted.
Braking system is free, with the exception of ABS and carbon/composite discs.
Sports 1000 is predominantly a mechanical grip formula, so wings are not permitted and aerodynamic development is tightly controlled, however there is plenty of scope for the amateur to develop their own car - often from scratch.
The gearbox and its ratios must be standard for the engine with a maximum of six forward speeds; there must also be a system of reverse which will drive the car and driver a distance of three metres and pass one of the wheels over a block 40mm square.
All cars use an Yokohama A048R control tyre, with an Avon wet weather option.
There are 14 rounds in the 2020 season, spread across six double and triple-header race weekends.
Club membership is just £25 for 12 months, season registration is £135, and double-header weekend entry fees (qualifying, 1 x 15min and 1 x 20min race) are typically between £295 and £395 depending on the circuit. Regulation compliant, proven cars are available secondhand from just £10,000.