PORSCHE RACING HISTORYRico Steinemann (CH)
1968 : Sebring 12 Hours - 2nd in class : Spa 1000 km - 2nd in class : Zeltweg 1000 km - 2nd in class : Le Mans 24 Hours - 2nd overall, 1st in class
4 February 1968 - Daytona 24 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 907 LH | 907-004 | P | Rico Steinemann (CH)/Dieter Spoerry (CH) | Squadra Tartaruga (CH) | DNF | 12th | 100 laps - Accident |
23 March 1968 - Sebring 12 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 910 | 910-027 | P2.0 | Rico Steinemann (CH)/Dieter Spoerry (CH) | Squadra Tartaruga (CH) | 20th | 2nd | 15th | 168 laps |
5 May 1968 - Targa Florio - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 190 | Porsche 910 | 910-010 | P2.0 | Rudi Lins (A)/Rico Steinemann (CH) | Valvoline Racing Team (A) | 9th | 5th | 9 laps - DNF |
19 May 1968 - Nürburgring 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 32 | Porsche 910 | 910-027 | P2.0 | Rico Steinemann (CH)/Dieter Spoerry (CH) | Hart Ski Racing Team (CH) | 25th | 7th | 17th | 38 laps |
26 May 1968 - Spa 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 910 | 910-027 | P2.0 | Dieter Spoerry (CH)/Rico Steinemann (CH) | Hart Ski Racing Team | 6th | 2nd | 15th | 66 laps |
25 August 1968 - Zeltweg 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 910 | 910-027 | P2.0 | Rico Steinemann (CH)/Dieter Spoerry (CH) | Hart Ski-Racing Team (CH) | 6th | 2nd | 11th | 146 laps |
29 September 1968 - Le Mans 24 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 66 | Porsche 907 LH | 907-008 | P3.0 | Rico Steinemann (CH)/Dieter Spoerry (CH) | Squadra Tartaruga (CH) | 2nd | 1st | 22nd | 326 laps |