Swedish Formula 3 1981
Sweden's national championship was opened up to Formula Super Vee and Formula Ford 2000 cars for 1981, but Formula 3 cars dominated all the races. Having been easily the quickest driver in the 1980 series, Bengt Trägårdh retained his March 803 and won the first four races to ensure the championship. 1980 champion Thorbjörn Carlsson bought a brand new Ralt RT3/81 but could not challenge Trägårdh, finishing behind him in second place three times before winning at Karlskoga after Trägårdh's engine failed.
Behind these two, Tomas Kaiser also had a new Ralt, and Jan Ridell had a one-year-old Argo JM6. Of the Formula Super Vee runners, only John Nielsen had the latest Ralt RT5/81.
The races
10 May 1981 > Kinnekullering
08 Jun 1981 > Knutstorp
13 Jun 1981 > Anderstorp
12 Jul 1981 > Västkustloppet at Falkenburg
09 Aug 1981 > Kvällspostens Newsrace at Knutstorp
23 Aug 1981 > Karlskoga
19 Sep 1981 > Mantorp Park
Svenska Mästerskapet events shown in bold
1981 Svenska Mästerskapet table
| 1 | Bengt Trägårdh | (F3) March 803 - Toyota 2T-G Novamotor | 36 pts | |
| 2 | Thorbjörn Carlsson | (F3) Ralt RT3/81 - Toyota 2T-G Novamotor | 27 pts | |
| 3 | Tomas Kaiser | (F3) Ralt RT3/81 - Toyota 2T-G Novamotor | 15 pts | |
| 4= | Leo Andersson | (F3) Ralt RT1/76 - Toyota 2T-G Novamotor | 12 pts | |
| 4= | Jan Ridell | (F3) Argo JM6 - Toyota 2T-G Novamotor | 12 pts | |
| 6= | Kennerth Persson | (FSV) March 81V - VW 4 | 5 pts | |
| 6= | Olav Rønningen | (F3) Ralt RT1/78 - Toyota 2T-G Novamotor | 5 pts | |
| 8 | John Nielsen | (FSV) Ralt RT5/81 - VW 4 | 4 pts | |
| 9 | Geir-Tony Johansson | (F3) Chevron B38 - Toyota 2T-G Novamotor | 3 pts | |
| 10 | Sonny Johansson | (F3) Ralt RT1/76 - Toyota 2T-G Novamotor | 2 pts |
Points table constructed from results.