Grand Touring Over

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It has been suggested that this article be merged with Grand Touring Experimental, All American Grand Touring, IMSA GTP, GT3 (1998–1999), Grand Touring Under, Grand Touring Supreme and American Challenge to List of IMSA GT classes. (Discuss) Proposed since December 2023.

Grand Touring Over (GTO)

naturally aspirated. The original class became known as Grand Touring Supreme (GTS) in 1992.^[4]

Porsche 911
Audi 90 Quattro
Nissan 240SX
Ford Mustang Cobra
Oldsmobile Toronado
Merkur XR4Ti

References

Classes of auto racing

Formula
racing

Active	F1 F2 F3 F4 F600 Formula 1000 Formula Atlantic Formula Car Challenge Formula Continental Formula E Formula Enterprises Formula Ford FF1600 Formula Regional GB3 Formula Vee IndyCar Super Formula S5000 Supermodified BOSS GP Monoposto Racing Club V de V Challenge Monoplace
Defunct	F3000 F5000 Formula A (SCCA) Formula B (SCCA) Formula C (SCCA) FCJ Formula Dream Formula Holden Formula Junior Formula Libre Formula Mondial Formula Pacific Formula Super Vee Australian National Formula Grand Prix Masters Grand Prix motor racing Tasman Series

One-make

formulae

Active	Formula Car Challenge Formula Enterprise Indy NXT MRF Challenge SRF USF Pro USF2000 USF Juniors FIA Formula Championship 2 3 S5000
Defunct	A1GP ADAC Formel Masters Auto GP Barber Pro CFGP FA1 Formula Asia Formula Abarth Alfa BMW Chrysler König LGB Swift Hyundai Lightning Maruti Masters China Russia Mazda Nissan Opel/Vauxhall Palmer Audi RUS Rolon Formula Renault 2.0L Grand Prix Masters GP2 GP3 International Formula Master Toyota Racing Series Superleague Formula

One-make

spec racing

Active	Porsche Carrera Cup Ferrari Challenge Ginetta GT4 Supercup Ginetta GT5 Challenge Ginetta Junior Championship Lamborghini Super Trofeo Mazda MX-5 Cup TVR Tuscan Challenge Mini Challenge UK Lotus Cup
Defunct	Trofeo Maserati Audi R8 LMS Cup Commodore Cup Australian Mini Challenge Aston Martin Asia Cup SEAT Cupra Championship SEAT Leon Supercopa

Karting

Touring
car racing

Active	BTCC NGTC (TCN-1) TCR (TCN-2) Stock Car Pro Series Stock Series Supercars Turismo Nacional Turismo Nacional BR TC2000
Defunct	Appendix J BTC-T Group 1 Group 2 Group 5 Group A Group C Group E Group F Group G Group H Group N Aus Group S Class 1 Class 2 Super 2000 Diesel 2000 DTM ETCR Superstars V8Star WTCC WTCR

Stock
car racing

Active	ARCA Allison Legacy Series IMCA Sport Compact Late model Legends Modifieds NASCAR Cup Xfinity Truck Pinty's Whelen Euro Series Mexico SRX Super Stock Street Stock Turismo Carretera
Defunct	ASCAR AUSCAR IROC

Oval

Rallying

Active	Groups Rally Group Rally1 Group Rally2 Group Rally3 Group Rally4 Group Rally5 Group R-GT
Defunct	Group 1 Group 2 Group 4 Group A Group B Group S Group N Group R R5 Super 1600 Super 2000 World Rally Car

Sports
prototypes

Active	LMDh LMH LMP LMP2 LMP3 Clubmans
Defunct	DP DPi Group 3 Group 4 Group 5 Group 6 Group 7 Group A Group C Group CN GC GC-21 IMSA GTP (1981–1993 era) LMP LMP1 LMPC S2000

Grand
touring

Active	GT3 GT2 GT4 GT500 GT300 Trans-Am
Defunct	Group 3 Group 4 Group 5 Group B Group D GT1 (1993–1999) GT1 (2000–2012) GT2 (1993–1999) GT2 (2005–2010) GT3 (1998–1999) LM GTE IMSA AAGT GTO GTS GTU GTX Appendix K Group D GT Cars

Drag
racing

Active	Top Fuel Dragster (TF/D) Funny Car (TF/FC) Top Alcohol Dragster (TA/D) Funny Car (TA/FC) Pro Stock (PS) Pro Modified (Pro Mod) Gas Super Stock Super Comp/Quick Rod Top Doorslammer Altered Competition
Defunct	Top Gas Modified Pro FWD

Off-road