SCCA/USAC Formula 5000 1975
F5000 continued to benefit from USAC's involvement with a second season of the Brian and Mario Show, the continuing plot being that Mario Andretti's Vel's Parnelli Lola T332 was fractionally quicker but Brian Redman's Haas-Hall T332 was more reliable, and the pair again shared the victories before the Englishman retained his title. Al Unser joined the VPJ team and became the closest challenger and only other race winner.
The Shadow team joined F5000, now that the SCCA had killed off Can-Am, and reigning Can-Am champion Jackie Oliver was highly competitive in the new F5000 Shadow DN6, but Bobby Unser had the opposite experience in the Eagle 755 and left AAR, to be replaced by Vern Schuppan. New Tasman champion Warwick Brown went well in the McRae-based Talon, and John Cannon worked wonders in a bitza March.
Promoters were now paying much more attention to F5000, and the Long Beach Grand Prix in September was televised nationally. Could this be the foundation for a long and successful history for the formula?
The races
01 Jun 1975 > Purolator 5000 at Pocono (road course)
15 Jun 1975 > Labatt's Blue 5000 at Mosport Park
13 Jul 1975 > Watkins Glen
27 Jul 1975 > Road America
10 Aug 1975 > Mid-Ohio
31 Aug 1975 > Atlanta Grand Prix at Road Atlanta
28 Sep 1975 > Long Beach Grand Prix
12 Oct 1975 > Monterey Grand Prix at Laguna Seca
26 Oct 1975 > California Grand Prix at Riverside
1975 SCCA/USAC Formula 5000 Championship table
| 1 | Brian Redman | Lola T332 - Chevrolet V8 Lola T400 - Chevrolet V8 | 227 pts | 4 wins |
| 2 | Mario Andretti | Lola T332 - Chevrolet V8 | 165 pts | 4 wins |
| 3 | Al Unser | Lola T332 - Chevrolet V8 | 161 pts | 1 win |
| 4 | Jackie Oliver | Shadow DN6 - Chevrolet V8 Shadow DN6 - Dodge V8 | 77 pts | |
| 5 | Eppie Wietzes | Lola T400 - Chevrolet V8 | 60 pts | |
| 6 | David Hobbs | Lola T332 - Chevrolet V8 | 50 pts | |
| 7 | Warwick Brown | Talon MR-1A - Chevrolet V8 | 42 pts | |
| 8 | Vern Schuppan | Eagle 755 - Chevrolet V8 | 38 pts | |
| 9 | BJ Swanson | Lola T332 - Chevrolet V8 | 32 pts | |
| 10 | Tony Brise | Lola T332 - Chevrolet V8 | 17 pts | |
| 11 | John Morton | Lola T400 - Chevrolet V8 Lola T332 - Chevrolet V8 | 15 pts | |
| 12 | John Cannon | March 73A/751 - Chevrolet V8 | 13 pts | |
| 13= | Elliot Forbes-Robinson | Lola T332 - Chevrolet V8 | 12 pts | |
| 13= | Chris Amon | Talon MR-1A - Chevrolet V8 | 12 pts | |
| 15 | Jon Woodner | Lola T400 - Chevrolet V8 Talon MR-1A - Chevrolet V8 | 11 pts | |
| 16 | Evan Noyes | Lola T332 - Chevrolet V8 | 10 pts | |
| 17= | Graham McRae | Lola T332 - Chevrolet V8 | 7 pts | |
| 17= | Tony Dean | Chevron B24/B28 - Chevrolet V8 | 7 pts | |
| 17= | Jerry Karl | Lola T332 - Chevrolet V8 | 7 pts | |
| 17= | John Gunn | Lola T332 - Chevrolet V8 | 7 pts |
The points table is derived from Wolfgang Klopfer's excellent Formula A and Formula 5000 in America p50.