1970 Trans-American Sedan Championship

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The 1970 Trans-American Championship was a motor racing series organised by the Sports Car Club of America for SCCA Sedans. It was the fifth Trans-Am Championship. Ford (Thanks to Parnelli Jones and George Follmer) and still potent Alfa Romeo won the Over 2 Litre and Under 2 Litre titles respectively.

With Porsche's 911 moving to a 2.2L engine, the year marked the resurgence of Alfa Romeo as dominant in the Under 2 Liter class. The year also marked the first win for American Motors, with Mark Donohue driving a Penske Racing-prepared AMC Javelin, winning three races. Also winning for the first time was BMW, in the Under 2 Liter races at Bryar and Bridgehampton.

The championship was contested over eleven rounds with separate races at each round for Under 2 Liter and Over 2 Liter cars.

Rnd	Date	Circuit	Distance	Over 2.0 Winning Car	Under 2.0 Winning Car
				Over 2.0 Winning Driver(s)	Under 2.0 Winning Driver(s)
1	April 18 April 19	Laguna Seca Raceway, Monterey, California	85.5 mi (137.6 km) (U2L) 171 mi (275 km) (O2L)	Ford Mustang	Alfa Romeo GTA
				Parnelli Jones	Lee Midgley
2	May 9	Lime Rock Park, Lakeville, Connecticut	1 Hour / 84.15 mi (135.43 km) (U2L) 2 Hours, 30 Minutes / 223.38 mi (359.50 km) (O2L)	Ford Mustang	Alfa Romeo GTA
				Parnelli Jones	Gaston Andrey
3	May 31	Bryar Motorsports Park, Loudon, New Hampshire	1 Hour / 72 mi (116 km) (U2L) 2 Hours, 30 Minutes / 223.38 mi (359.50 km) (O2L)	Ford Mustang	BMW 2002
				George Follmer	Peter Schuster
4	June 7	Mid-Ohio Sports Car Course, Lexington, Ohio	72 mi (116 km) (U2L) 180 mi (290 km) (O2L)	Ford Mustang	Alfa Romeo GTA
				Parnelli Jones	Bert Everett
5	June 20 June 21	Bridgehampton Race Circuit, Sag Harbor, New York	99.25 mi (159.73 km) (U2L) 199.5 mi (321.1 km) (O2L)	AMC Javelin	BMW 2002
				Mark Donohue	Hans Ziereis
6	July 5	Donnybrooke International Speedway, Brainerd, Minnesota	99 mi (159 km) (U2L) 210 mi (340 km) (O2L)	Chevrolet Camaro	Alfa Romeo GTA
				Milt Minter	Horst Kwech
7	July 19	Road America, Elkhart Lake, Wisconsin	100 mi (160 km) (U2L) 200 mi (320 km) (O2L)	AMC Javelin	Alfa Romeo GTA
				Mark Donohue	Horst Kwech
8	August 2	Circuit Mont-Tremblant, Saint-Jovite, Quebec	79.5 mi (127.9 km) (U2L) 185.5 mi (298.5 km) (O2L)	AMC Javelin	Alfa Romeo GTA
				Mark Donohue	Lee Midgley
9	August 16	Watkins Glen International, Watkins Glen, New York	96.6 mi (155.5 km) (U2L) 209.3 mi (336.8 km) (O2L)	Chevrolet Camaro	Alfa Romeo GTA
				Vic Elford	Horst Kwech
10	September 20	Seattle International Raceway, Kent, Washington	90 mi (140 km) (U2L) 202.5 mi (325.9 km) (O2L)	Ford Mustang	Alfa Romeo GTA
				Parnelli Jones	Bert Everett
11	October 4	Riverside International Raceway, Riverside, California	89.25 mi (143.63 km) (U2L) 201.45 mi (324.20 km) (O2L)	Ford Mustang	Alfa Romeo GTA
				Parnelli Jones	Bert Everett
[1]

Points were awarded according to finishing position. Only the highest-placed car scored points for the manufacturer. Only the best 9 finishes counted towards the championship. Drivers' championships were not awarded in Trans-Am until 1972.

1970 was the first and only year that every Detroit "pony car" manufacturer has a factory-backed team in TransAm.