Riley MkXI

The Riley MkXI, and its evolutions and derivatives, the Riley MkXX, the Riley MkXXII,^[1][2] and the Riley MkXXVI, are a series of Daytona Prototype race cars, designed, developed and built by Riley Technologies, between 2003 and 2016.^{[3][4][5][6][7][8]} Between 2003 and 2016, the cars scored a combined total of 84 race wins, achieved 106 podium finishes, and clinched 85 pole positions.^{[9][10][11][12][13]}

Riley MkXI

Category	Daytona Prototype
Constructor	Riley Technologies
Technical specifications
Chassis	Hybrid Aluminum Honeycomb / Carbon fiber body panels on steel spaceframe
Suspension	Double wishbone, push-rod-actuated coil springs over shock absorbers
Length	~ 4,509 mm (177.5 in)
Width	~ 1,996 mm (78.6 in)
Height	~ 1,095 mm (43.1 in)
Wheelbase	2,794 mm (110.0 in)
Engine	Ford / Lexus / Pontiac / BMW / Porsche / Chevrolet 4,000–5,000 cc (4.0–5.0 L; 244.1–305.1 cu in) 24-valve to 32-valve, OHC/DOHC V8, naturally-aspirated, mid-mounted
Transmission	Xtrac/Emco 5-speed or 6-speed sequential
Weight	900–1,021 kg (1,984.2–2,250.9 lb)
Competition history
Debut	2003
Wins Podiums Poles 84 120 85