The 1968 Canadian-American Challenge Cup was the third season of the Can-Am auto racing series. It consisted of FIA Group 7 racing cars running two-hour sprint events. It began September 1, 1968, and ended November 10, 1968, after six rounds.
| Rnd | Race | Circuit | Date |
|---|---|---|---|
| 1 | Road America Can-Am | Road America | September 1 |
| 2 | Bridgehampton Grand Prix | Bridgehampton Race Circuit | September 15 |
| 3 | Klondike Trail 200 | Edmonton Speedway Park | September 29 |
| 4 | Monterey Grand Prix | Laguna Seca Raceway | October 13 |
| 5 | Los Angeles Times Grand Prix | Riverside International Raceway | October 27 |
| 6 | Stardust Grand Prix | Stardust International Raceway | November 10 |
| Team | Chassis | Engine | Tire | Number | Drivers | Rounds |
|---|---|---|---|---|---|---|
| | Burnett Mk. II | Chevrolet 6.0 L V8 | G | 0 | | 4–5 |
| | Caldwell D-7B Caldwell D-7C | Chevrolet 6.0 L V8 | G | 1/2 | | 1 |
| | 2–5 | |||||
| Lola T160 | Chevrolet 6.1 L V8 Chevrolet 7.0 L V8 | 2/1 | | 1 | ||
| | 2–6 | |||||
| | McLaren M8A | Chevrolet 7.0 L V8 | G | 4 | | All |
| 5 | | All | ||||
| | McLaren M6B | Chevrolet 7.0 L V8 | G | 6 | | All |
| | Lola T160 TS | Chevrolet 7.0 L V8 | F | 7 | | 2–3, 5 |
| | McLaren M6B | Chevrolet 7.0 L V8 | G | 9 | | 1–3, 5–6 |
| | Lola T160 | Chevrolet 7.0 L V8 | G | 10 | | All |
| Lola T70 Mk. 3 Lola T160 | Chevrolet 6.0 L V8 | 26 | | All | ||
| | McLaren M6B | Ford 6.2 L V8 | G | 11 | | All |
| | Lola T70 Mk. 3 | Chevrolet 6.5 L V8 | G | 12 | | 4–5 |
| | Lola T70 Mk. 3 | Chevrolet 5.5 L V8 | 14 | | 1–2 | |
| | Lola T70 Mk. 3B Lola T160 | Chevrolet 5.9 L V8 | G | 15 | | 1–5 |
| 20 | | 2 | ||||
| | Lola T70 Mk. 3B | Ford 7.0 L V8 | F | 16 | | 5–6 |
| | McLaren M6B | Chevrolet 5.9 L V8 | F | 17 | | 3–6 |
| | McLaren-Elva Mk. III | Chevrolet 6.0 L V8 | G | 18 | | 1–2 |
| | Lola T70 Mk. 3 GT | Chevrolet 6.0 L V8 | F | 18 | | 4–6 |
| | McLaren-Elva Mk. IIB Lola T70 Mk. 3 | Chevrolet 6.2 L V8 | G | 19 | | 1, 3, 5–6 |
| | Lola T70 Mk. 3 Lola T160 | Ford 5.0 L V8 Ford 7.0 L V8 | F | 21/3 | | 1–2, 5–6 |
| | McLaren-Elva Mk. IIIB | Chevrolet 5.5 L V8 | G | 21/22 | | 4–5 |
| | Ferrari 330 P4 | Ferrari 4.2 L V12 | G | 22 | | 1–2 |
| | Ferrari 612 P | Ferrari 6.2 L V12 | F | 23 | | 6 |
| | Lola T70 Mk. 3 | Ford 7.0 L V8 | G | 24 | | 2, 6 |
| | McKee Mk. 10 | Oldsmobile 6.4 L V8 | G | 25 | | 1, 3–6 |
| | McLaren M6B | Chevrolet 6.0 L V8 | G | 28 | | 1–2, 5–6 |
| | Lola T70 Mk. 2 | Chevrolet 6.0 L V8 | F | 31/37 | | 1–2 |
| | Lola T70 Mk. 3B | Ford 7.0 L V8 | G | 32/31 | | 1–3 |
| 34 | | 4 | ||||
| | Lola T70 Mk. 3 | Chevrolet 6.3 L V8 | F | 34 | | 5 |
| | Lola T160 McLaren M6B | Ford 5.0 L V8 Ford-Weslake 5.3 L V8 | G | 36 | | 2–6 |
| McLaren M6B Lola T160 | Ford-Weslake 5.3 L V8 Ford 7.0 L V8 | 48 | | 2–6 | ||
| | Lola T70 Mk. 2B | Chevrolet 6.2 L V8 | G | 37 | | 5–6 |
| | 5 | |||||
| | McLaren-Elva Mk. IIB | Chevrolet 5.9 L V8 | G | 39 | | 1 |
| | Genie Mk. X | Chevrolet 5.0 L V8 | G | 41 | | 4 |
| | McLaren-Elva Mk. III | Chevrolet 6.9 L V8 | G | 41 | | 5–6 |
| | McLaren-Elva Mk. III | Chevrolet 5.9 L V8 | G | 42 | | 1–2 |
| | Lola T70 Mk. 3 McLaren M6B | Chevrolet 6.0 L V8 | G | 43 | | 2–6 |
| | 2 | |||||
| | McLaren M6A | Chevrolet 7.0 L V8 | G | 44 | | 1–2, 4–6 |
| | Lola T70 Mk. 3B | Chevrolet 5.9 L V8 | G | 45 | | 3, 6 |
| | McLaren M6B | Ford 7.0 L V8 | G | 52 | | All |
| | Lotus 19 | Ford 4.7 L V8 | 54 | | 5 | |
| | McLaren M6B | Chevrolet 6.1 L V8 | G | 55 | | 3, 5–6 |
| | McLaren-Elva Mk. III | Chevrolet 6.0 L V8 | 56 | | 1 | |
| | McLaren-Elva Mk. III | Chevrolet 6.0 L V8 | G | 57 | | 1, 3 |
| | Porsche 906 | Porsche 2.5 L Flat-6 | F | 57 | | 4 |
| | Lola T70 Mk. 3 | Chevrolet 6.0 L V8 | 61 | | 1–2 | |
| | McLaren-Elva Mk. IIB | Chevrolet 6.0 L V8 | F | 62 | | 4–6 |
| | Lola T70 Mk. 3 | Chevrolet 6.0 L V8 | 63 | | 1, 4 | |
| | Burnett Mk. 3 | Chevrolet 7.0 L V8 | G | 64 | | 4–5 |
| | Chaparral 2G | Chevrolet 7.0 L V8 | F | 66 | | All |
| | McLaren-Elva Mk. II | Chevrolet V8 | 71 | | 5 | |
| | Lola T70 Mk. 3 | Chevrolet 6.0 L V8 | F | 76 | | 4–6 |
| | McLaren-Elva Mk. III | Chevrolet 5.9 L V8 | 77/72 | | 1, 6 | |
| | Lola T70 Mk. II | Chevrolet 6.0 L V8 | F | 77 | | 4–6 |
| | McLaren-Elva Mk. III | Ford-Weslake 5.3 L V8 Ford 6.2 L V8 | F | 98 | | All |
| | Lola T70 Mk. 3 | Chevrolet 6.0 L V8 | F | 99 | | 3, 5–6 |
| Rnd | Circuit | Winning team | Results |
|---|---|---|---|
| Winning driver | |||
| 1 | Road America | | Results |
| | |||
| 2 | Bridgehampton | | Results |
| | |||
| 3 | Edmonton | | Results |
| | |||
| 4 | Laguna Seca | | Results |
| | |||
| 5 | Riverside | | Results |
| | |||
| 6 | Stardust | | Results |
| |
Points are awarded to the top six finishers in the order of 9-6-4-3-2-1.