ID Engines: Total karting engine concept: Rocky, Junior, Senior and Shifter ID Engines: Total karting engine concept: Rocky, Junior, Senior and Shifter Bart Luijkx / Saturday, October 10, 2020 0 3036 Article rating: 5.0 In 2021 ID Engines introduces two new karting engines: The ID Engines Senior and The ID Engines Shifter. Owner Arthur Dontje describes the Shifter Engine as a true monster. 41 hp and 127 km/h maximum speed. Test driver Ricardo Romkema gives a demonstration at Circuit Park Berghem. Read more