The 1933 Swedish Summer Grand Prix (Swedish: Sveriges sommar-Grand Prix för automobiler) was arranged by the Royal Automobile Club (KAK) and held at 6 August on a 29.7km (18.5miles) circuit at Norra Vram. The circuit was made up at regular countryside roads at a place very close to present day closed circuit Ring Knutstorp in Kågeröd. 12 laps were driven, making the distance 356.4km (221.5miles).[1] [2] The 10,000 krona prize to the winner was the largest offered yet for any race in Scandinavia.[3]
The lap followed the straight road from Norra Vram south to Södra Vram (now Billesholm) for 1.2km (00.7miles) before a part with more turns towards Kågeröd, were the circuit turned sharply left and started to go north-east uphill for many km. At this part the asphalt ended and the circuit continued on gravel roads. When the circuit reached Stenestad there was another sharp left turn and then there was a long, twisty downhill road back to Norra Vram.
Astrid Lindgren was race secretary, and 160 policemen and 60 track marshals worked around the course.
The opening lap saw a seven-car pile-up, set off by the wreck of the Mercedes-Benz SSK of Börje Dahlin, in which several drivers were injured, two seriously, and riding mechanic Erik Lafrenz killed. One of the crashed cars caught fire; it spread to a nearby house, which burned down.[4] The race continued while emergency services attended the scene and the race was eventually won by Antonio Brivio, driving an Alfa Romeo for Scuderia Ferrari. Major racing came to a halt after that.[3]
Most entrants (as can be seen in the list below) were private entrants.
| Place | No. | Driver | Entrant | Car | Laps | Time/status | |
|---|---|---|---|---|---|---|---|
| 1 | 19 |  Antonio Brivio | Scuderia Ferrari | Alfa Romeo Monza 2.6 S-8 | 12 | 2h51m55s (124.45 km/h) | |
| 2 | 22 |  Whitney Straight | B. Rubin | Maserati 8CM 3.0 S-8 | 12 | 2h54m43s | |
| 3 | 3 |  Eugen Bjørnstad | Eugen Bjørnstad | Alfa Romeo Monza 2.3 S-8 | 12 | 3h03m43s | |
| 4 | 14 |  Karl Ebb | Karl Ebb | Mercedes-Benz SSK 7.1 S-6 | 12 | 3h06m51s | |
| 5 | 10 |  Åke Johansson | Åke Johansson | Bugatti T37A 1.5 S-4 | 12 | 3h16m06s | |
| 6 | 24 | Harry Larsson | Harry Larsson | Ford Special 3.6 S-4 | 12 | 3h22m51s | |
| 7 | 20 | Walter Görtz | Walter Görtz | Ford Special 3.6 S-4 | 12 | 4h12m27s | |
| DNF | 26 |  Morian Hansen | Morian Hansen | Ford Special 3.6 V-8 | 11 | engine failure | |
| DNF | 18 | Martin Strömberg | Martin Strömberg | Chevrolet Special 3.2 | 7 | engine failure | |
| DNF | 9 | Otto Wihlborg | Otto Wihlborg | Bugatti T35B 2.3 S-8 | 6 | crash | |
| DNF | 27 | Poul Tholstrup | Poul Tholstrup | Ford Special 3.6 V-8 | 5 | steering | |
| DNF | 8 | Helmer Carlsson | Bertil Carlsson | De Soto Special 3.4 S-8 | 4 | clutch | |
| DNF | 6 | Carl-Gustaf Johansson | C-G. Johansson | Ford Special 3.6 V-8 | 4 | valves | |
| DNF | 4 | Axel Johnsson | Axel Johnsson | Bugatti T43 2.3 S-8 | 4 | – | |
| DNF | 25 | Tore Wistedt | Tore Wistedt | MG C 0.7 S-4 | 0 | clutch | |
| DNF | 15 |  Louis Chiron | Scuderia CC | Alfa Romeo P3 2.6 S-8 | 0 | crash | |
| DNF | 12 | PeWe Widengren | P-V. Widengren | Alfa Romeo Monza 2.3 S-8 | 0 | crash | |
| DNF | 11 | John Forsberg | John Forsberg | Ford Special 3.6 V-8 | 0 | crash | |
| DNF | 7 | Asser Wallenius | Asser Wallenius | Ford Special 3.6 V-8 | 0 | crash | |
| DNF | 2 | Olle Bennström | S. O. Bennström | Ford Special 3.6 V-8 | 0 | crash | |
| DNF | 1 | Börje Dahlin | Börje Dahlin | Mercedes-Benz SSK 7.1 S-6 | 0 | crash | |
| DNF | 23 | Oscar Wickberg | Oscar Wickberg | Bugatti T35 2.0 S-8 | 0 | crash | |
| DNS | 5 | Bo Lindh | Bo Lindh | Hudson Special 4.9 | – | engine failure | |
| DNA | 16 | Karl-Gustav Sundstedt | K-G Sundstedt | Bugatti T35B 2.3 S-8 | – | illness | |
| DNS | 17 | S.P.J. Keinänen | S.P.J. Keinänen | Chrysler Special 5.1 S-6 | – | engine failure | |
| DNA | 28 | Mario Umberto Borzacchini | Scuderia Ferrari | Alfa Romeo Monza 2.6 S-8 | – | illness | |
| DNS | 21 | Gösta Askergren | Gösta Askergren | Chevrolet Special 3.2 | – | crash |
Fastest lap: Brivio – 13m51s – 128.7 km/h (80.0 mph)