![](https://motorsport.hyundai.com/wp-content/uploads/2021/03/02-etcr-energy-station-250x250-2.png)
All Rally1 cars are fitted with 100kW plug-in hybrid units that produce over 500 horsepower when combined with the 1.6 litre internal combustion engine. The crews deploy the additional electrical energy through an automatic system dictated by pre-programmed engine maps. These maps are be based on the driver’s use of the throttle and brake pedal, allowing the additional energy to be released and regenerated in a bespoke manner dependant on driving style, road conditions and stage characteristics.