| 6.1.2008 | Daytona Test | 01 | #004 | Pruett / Rojas / Franchitti / Montoya | TELMEX Chip Ganassi with Felix Sabates | 1st |
| 6.1.2008 | Daytona Test | 02 | #002 | Dixon / Wheldon / Duran / Lloyd | Target Chip Ganassi with Felix Sabates | 6th |
| 6.1.2008 | Daytona Test | 2 | #025 | Zogaib / McNish / Luhr / Rockenfeller | SAMAX | 10th |
| 6.1.2008 | Daytona Test | 3 | #031 | Shane Lewis | Southard Motorsports | 20th |
| 6.1.2008 | Daytona Test | 7 | #027 | Plumb / Wahl / Grégoire / Cullen / Shovlin | Fortune Market Racing | 15th |
| 6.1.2008 | Daytona Test | 9 | #021 | Briscoe / Castroneves / Busch | Penske-Taylor Racing | 2nd |
| 6.1.2008 | Daytona Test | 10 | #020 | Taylor / Angelelli / Valiante / Taylor | SunTrust Racing | 7th |
| 6.1.2008 | Daytona Test | 11 | #017 | Duno / Primat / Mücke / Enge / Charouz / Dalziel | SAMAX | 9th |
| 6.1.2008 | Daytona Test | 12 | #024 | Schramm / Bell / Bell / Dallenbach / Kasemets | RVO Motorsports | 19th |
| 6.1.2008 | Daytona Test | 58 | #029 | Donohue / Law / Rice | Brumos Porsche | 11th |
| 6.1.2008 | Daytona Test | 59 | #030 | France / Haywood / Barbosa / Borcheller | Brumos Porsche/Kendall | 12th |
| 6.1.2008 | Daytona Test | 99 | #026 | Johnson / Gurney / Fogarty / Vasser | Gainsco/Bob Stallings Racing | 5th |
| 27.1.2008 | 24 h Daytona | 01 | #004 | Pruett / Rojas / Montoya / Franchitti | Chip Ganassi with Felix Sabates | 1st |
| 27.1.2008 | 24 h Daytona | 02 | #002 | Dixon / Wheldon / Duran / Lloyd | Chip Ganassi with Felix Sabates | 44th |
| 27.1.2008 | 24 h Daytona | 2 | #025 | Rockenfeller / McNish / Luhr | SAMAX | 55th |
| 27.1.2008 | 24 h Daytona | 3 | #031 | Lewis / Lester / Christopher / Barron | Southard Motorsports | 42nd |
| 27.1.2008 | 24 h Daytona | 7 | #027 | Plumb / Wahl / Grégoire / Cullen / Shovlin | Sigalsport | 28th |
| 27.1.2008 | 24 h Daytona | 9 | #021 | Briscoe / Castroneves / Busch | Penske-Taylor Racing | 3rd |
| 27.1.2008 | 24 h Daytona | 10 | #020 | Taylor / Angelelli / Valiante / Taylor | SunTrust Racing | 5th |
| 27.1.2008 | 24 h Daytona | 11 | #017 | Dalziel / Enge / Primat | SAMAX | 61st |
| 27.1.2008 | 24 h Daytona | 12 | #024 | Bell / Kasemets | RVO Motorsports | 63rd |
| 27.1.2008 | 24 h Daytona | 58 | #029 | Law / Donohue / Rice | Brumos Racing | 27th |
| 27.1.2008 | 24 h Daytona | 59 | #030 | France / Barbosa / Borcheller / Haywood | Brumos Racing | 23rd |
| 27.1.2008 | 24 h Daytona | 75 | #011 | Krohn / van de Poele / Gavin | Krohn Racing | 7th |
| 27.1.2008 | 24 h Daytona | 76 | #014 | Jönsson / Zonta / Turner | Krohn Racing | 4th |
| 27.1.2008 | 24 h Daytona | 99 | #026 | Gurney / Fogarty / Vasser / Johnson | Gainsco/Bob Stallings Racing | 2nd |
| 29.3.2008 | 250 miles Homestead | 2 | #025 | Zogaib / Dalziel | SAMAX | 20th |
| 29.3.2008 | 250 miles Homestead | 7 | #027 | Plumb / Sigal | Sigalsport | 5th |
| 29.3.2008 | 250 miles Homestead | 9 | #012 | Smith / Tuttle | Tuttle Team Racing | 39th |
| 29.3.2008 | 250 miles Homestead | 12 | #024 | Bell / Schramm | RVO Motorsports | DNA |
| 29.3.2008 | 250 miles Homestead | 58 | #029 | Law / Donohue | Brumos Racing | 42nd |
| 29.3.2008 | 250 miles Homestead | 59 | #030 | France / Barbosa | Brumos Racing | 7th |
| 19.4.2008 | 250 miles Mexico | 2 | #025 | Zogaib / Dalziel | SAMAX | 28th |
| 19.4.2008 | 250 miles Mexico | 7 | #027 | Plumb / Sigal | Sigalsport | 30th |
| 19.4.2008 | 250 miles Mexico | 58 | #029 | Law / Donohue | Brumos Racing | 11th |
| 19.4.2008 | 250 miles Mexico | 59 | #030 | France / Barbosa | Brumos Racing | 8th |
| 27.4.2008 | 250 miles Virginia | 2 | #025 | Zogaib / Dalziel | SAMAX | 2nd |
| 27.4.2008 | 250 miles Virginia | 7 | #027 | Plumb / Sigal | Sigalsport | 5th |
| 27.4.2008 | 250 miles Virginia | 58 | #029 | Law / Donohue | Brumos Racing | 44th |
| 27.4.2008 | 250 miles Virginia | 59 | #030 | France / Barbosa | Brumos Racing | 13th |
| 17.5.2008 | 250 miles Laguna Seca | 2 | #025 | Zogaib / Dalziel | SAMAX | 1st |
| 17.5.2008 | 250 miles Laguna Seca | 58 | #029 | Law / Donohue | Brumos Racing | 5th |
| 17.5.2008 | 250 miles Laguna Seca | 59 | #030 | France / Barbosa | Brumos Racing | 7th |
| 7.6.2008 | 6 Watkins Glen | 2 | #025 | Zogaib / Dalziel / Empringham | SAMAX | 15th |
| 7.6.2008 | 6 Watkins Glen | 10 | #020 | Angelelli / Valiante | SunTrust Racing | 3rd |
| 7.6.2008 | 6 Watkins Glen | 58 | #029 | Law / Donohue | Brumos Racing | 2nd |
| 7.6.2008 | 6 Watkins Glen | 59 | #030 | France / Barbosa / Haywood | Brumos Racing | 9th |
| 21.6.2008 | 250 miles Mid-Ohio | 2 | #025 | Zogaib / Dalziel | SAMAX | 38th |
| 21.6.2008 | 250 miles Mid-Ohio | 10 | #020 | Angelelli / Valiante | SunTrust Racing | 10th |
| 21.6.2008 | 250 miles Mid-Ohio | 58 | #029 | Law / Donohue | Brumos Racing | 2nd |
| 21.6.2008 | 250 miles Mid-Ohio | 59 | #030 | France / Barbosa | Brumos Racing | 5th |
| 3.7.2008 | 250 miles Daytona | 2 | #025 | Zogaib / Dalziel | SAMAX | 33rd |
| 3.7.2008 | 250 miles Daytona | 58 | #029 | Law / Donohue | Brumos Racing | 5th |
| 3.7.2008 | 250 miles Daytona | 59 | #030 | France / Barbosa | Brumos Racing | 4th |
| 20.7.2008 | 250 miles Barber | 23 | #007 | Auberlen / Hand | Alex Job Racing | 12th |
| 20.7.2008 | 250 miles Barber | 58 | #029 | Law / Donohue | Brumos Racing | 2nd |
| 20.7.2008 | 250 miles Barber | 59 | #030 | France / Barbosa | Brumos Racing | 7th |
| 1.8.2008 | 200 miles Montreal | 23 | #007 | Auberlen / Hand | Alex Job Racing | 15th |
| 1.8.2008 | 200 miles Montreal | 58 | #029 | Law / Donohue | Brumos Racing | 3rd |
| 1.8.2008 | 200 miles Montreal | 59 | #030 | France / Barbosa | Brumos Racing | 4th |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 22 | #005 | de Quesada / Dumoulin / Gabel | Alegra Motorsports | 16th |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 23 | #007 | Auberlen / Hand | Alex Job Racing | 4th |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 58 | #029 | Law / Donohue | Brumos Racing | 3rd |