# 1966 Trans-American Sedan Championship

The 1966 Trans-American Sedan Championship was the inaugural running of the Sports Car Club of America's Trans-Am Series auto racing series. It was open to FIA Group 1 and FIA Group 2 cars and was contested over seven races. Manufacturers titles were awarded for both Over 2 Liter and Under 2 Liter cars with Ford and Alfa Romeo winning their respective class championships. Horst Kwech and Gaston Andrey were subsequently named Drivers co-champions in 1980 when the SCCA retroactively named drivers championships for the series after the 1980 season.

## Schedule

The championship was contested over a seven race series. Overall winner race winners are shown in bold.
| Rnd | Race | Date | Circuit | Distance | Over 2 liter - Winning car | Under 2 liter - Winning car |
| Rnd | Race | Date | Circuit | Distance | Over 2 liter - Winning driver(s) | Under 2 liter - Winning driver(s) |
| 1 | Sebring 4-Hour International Touring Race | March 25 | Sebring International Raceway, Sebring, Florida | 348.4 mi (560.7 km) | Dodge Dart | Alfa Romeo GTA |
| 1 | Sebring 4-Hour International Touring Race | March 25 | Sebring International Raceway, Sebring, Florida | 348.4 mi (560.7 km) | Bob Tullius Tony Adamowicz | Jochen Rindt |
| 2 | Mid-America 300 | June 12 | Mid-America Raceway, Wentzville, Missouri | 299.25 mi (481.60 km) | Ford Mustang | Alfa Romeo GTA |
| 2 | Mid-America 300 | June 12 | Mid-America Raceway, Wentzville, Missouri | 299.25 mi (481.60 km) | Tom Yeager Bob Johnson | Horst Kwech Gaston Andrey |
| 3 | Bryar 250 | July 10 | Bryar Motorsports Park, Loudon, New Hampshire | 250 mi (400 km) | Plymouth Barracuda | Ford Cortina Lotus |
| 3 | Bryar 250 | July 10 | Bryar Motorsports Park, Loudon, New Hampshire | 250 mi (400 km) | Bruce Jennings | Allan Moffat |
| 4 | VIR 400 | July 31 | Virginia International Raceway, Danville, Virginia | 400.5 mi (644.5 km) | Ford Mustang | Alfa Romeo GTA |
| 4 | VIR 400 | July 31 | Virginia International Raceway, Danville, Virginia | 400.5 mi (644.5 km) | Tom Yeager Bob Johnson | Horst Kwech Gaston Andrey |
| 5 | Marlboro 12-Hour | August 14 | Marlboro Park Speedway, Upper Marlboro, Maryland | 12 Hours 688.5 mi (1,108.0 km) | Dodge Dart | Alfa Romeo GTA |
| 5 | Marlboro 12-Hour | August 14 | Marlboro Park Speedway, Upper Marlboro, Maryland | 12 Hours 688.5 mi (1,108.0 km) | Bob Tullius Tony Adamowicz | Harry Theodorocopulous Sam Posey |
| 6 | Pan-American Endurance Race | September 10 | Green Valley Raceway, Smithfield, Texas | 6 Hours 391.84 mi (630.61 km) | Ford Mustang | Alfa Romeo GTA |
| 6 | Pan-American Endurance Race | September 10 | Green Valley Raceway, Smithfield, Texas | 6 Hours 391.84 mi (630.61 km) | John McComb Brad Booker | Horst Kwech Gaston Andrey |
| 7 | Riverside 4-hour race | September 18 | Riverside International Raceway, Riverside, California | 4 Hours 351 mi (565 km) | Ford Mustang | Lotus Cortina |
| 7 | Riverside 4-hour race | September 18 | Riverside International Raceway, Riverside, California | 4 Hours 351 mi (565 km) | Jerry Titus | Frank Gardner |

## Season review

The Dodge Dart of Bob Tullius won the Over 2 liter class at the opening race at Sebring International Raceway, while the Alfa Romeo GTA of Formula One driver Jochen Rindt won the Under 2 liter class and was placed first overall.
Over the course of the championship Ford Mustangs won the Over 2 liter class at four races with Dodge Darts winning twice and Plymouth Barracuda once. Alfa Romeo GTAs won the Under 2 liter class at five races with Ford Cortina Lotus winning twice. Ford and Alfa Romeo won their respective class championships.

## Points system

Points were awarded according to finishing position. Only the highest-placed car scored points for the manufacturer. Drivers' championships were not awarded in Trans-Am until 1972.
| 1st | 2nd | 3rd | 4th | 5th | 6th |
| 9 | 6 | 4 | 3 | 2 | 1 |

## Championship standings
### Over 2 liter class

| Pos | Manufacturer | Seb | MAR | Bry | VIR | Mar | GRV | RIV | Pts |
| 1 | Ford | 5 | 1 | 2 | 1 | 5 | 1 | 1 | 46 |
| 2 | Chrysler-Plymouth | 2 | 2 | 1 | 3 | 2 | 2 | 5 | 39 |
| 3 | Dodge | 1 | 5 | 4 | | 1 | 3 | 2 | 33 |
| 4 | Chevrolet | 4 | | | | | | | 3 |

### Under 2 liter class

| Pos | Manufacturer | Seb | MAR | Bry | VIR | Mar | GRV | RIV | Pts |
| 1 | Alfa Romeo | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 57 |
| 2 | Ford of Britain | | 2 | 1 | | 2 | 2 | 1 | 36 |
| 3 | BMW | 6 | | | 4 | | | | 4 |
| 4 | BMC | | | | | | 4 | | 3 |
| 5 | Volvo | | | | 5 | | | | 2 |
| 6 | Fiat Abarth | | | | | 6 | | | 1 |

## The cars

The following models scored championship points for their respective manufacturers.

### Over 2 liter class

* Ford Mustang
* Plymouth Barracuda
* Dodge Dart
* Chevrolet Corvair

### Under 2 liter class

* Alfa Romeo GTA
* Ford Cortina Lotus
* BMW 1800TI & 1800 TISA
* BMC Cooper S
* Volvo 122S
* Fiat Abarth 1000 TC