The 1966 Canadian-American Challenge Cup was the inaugural season of the Can-Am auto racing series. It was for FIA Group 7 racing cars running two-hour sprint events. It began September 11, 1966, and ended November 13, 1966, after six rounds.
The series was won by John Surtees driving a Lola T70 Mk.2.
| Rnd | Race | Circuit | Date | |
|---|---|---|---|---|
| 1 | Player's 200 | Circuit Mont-Tremblant | September 11 | |
| 2 | Bridgehampton Grand Prix | Bridgehampton Race Circuit | September 18 | |
| 3 | Canadian Grand Prix for the Pepsi-Cola Trophy | Mosport Park | September 24 | |
| 4 | Monterey Grand Prix | Laguna Seca Raceway | October 16 | |
| 5 | Los Angeles Times Grand Prix | Riverside International Raceway | October 30 | |
| 6 | Stardust Grand Prix | Stardust Raceway | November 13 |
| Rnd | Circuit | Winning Team | Results |
|---|---|---|---|
| Winning Driver (Car) | |||
| 1 | Mont-Tremblant |  #3 Team Surtees | Results |
| John Surtees (Lola T70 Mk.2) | |||
| 2 | Bridgehampton |  #30 All American Racers | Results |
| Dan Gurney (Lola T70 Mk.2) | |||
| 3 | Mosport | #6 Roger Penske Racing Ent. | Results |
| Mark Donohue (Lola T70 Mk.2) | |||
| 4 | Laguna Seca | #65 Chaparral Cars | Results |
| Phil Hill (Chaparral 2E) | |||
| 5 | Riverside | #7 Team Surtees | Results |
| John Surtees (Lola T70 Mk.2) | |||
| 6 | Stardust | #7 Team Surtees | Results |
| John Surtees (Lola T70 Mk.2) |
Points are awarded to the top six finishers in the order of 9-6-4-3-2-1.
