| 6.1.2008 | Daytona Test | 6 | #033 | Pew / James / Allmendinger / Frisselle | Michael Shank Racing | 3rd |
| 6.1.2008 | Daytona Test | 60 | #032 | Patterson / Negri / Wilson / Rahal | Michael Shank Racing | 8th |
| 6.1.2008 | Daytona Test | 61 | #MkXI-001 | Frisselle / Wilkins / Ranger / Braun | AIM Autosport | 4th |
| 6.1.2008 | Daytona Test | 91 | #MkXI-028 | Matthews / Goossens / Hunter-Reay / O'Connell | Bob Stallings/Riley-Matthews | 13th |
| 27.1.2008 | 24 h Daytona | 6 | #033 | Pew / James / Allmendinger / Frisselle | Michael Shank Racing | 14th |
| 27.1.2008 | 24 h Daytona | 60 | #032 | Patterson / Negri / Wilson / Rahal | Michael Shank Racing | 6th |
| 27.1.2008 | 24 h Daytona | 61 | #MkXI-001 | Frisselle / Wilkins / Ranger / Braun | AIM Autosport | 48th |
| 27.1.2008 | 24 h Daytona | 91 | #MkXI-028 | Matthews / Goossens / O'Connell / Hunter-Reay | Bob Stallings/Riley-Matthews | 8th |
| 29.3.2008 | 250 miles Homestead | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi with Felix Sabates | 1st |
| 29.3.2008 | 250 miles Homestead | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 9th |
| 29.3.2008 | 250 miles Homestead | 6 | #033 | Pew / James | Michael Shank Racing | 36th |
| 29.3.2008 | 250 miles Homestead | 60 | #032 | Patterson / Negri | Michael Shank Racing | 3rd |
| 29.3.2008 | 250 miles Homestead | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 8th |
| 29.3.2008 | 250 miles Homestead | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 4th |
| 29.3.2008 | 250 miles Homestead | 99 | #MkXI-026 | Gurney / Fogarty | Bob Stallings/Riley-Matthews | 6th |
| 19.4.2008 | 250 miles Mexico | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates | 2nd |
| 19.4.2008 | 250 miles Mexico | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 12th |
| 19.4.2008 | 250 miles Mexico | 6 | #033 | Pew / James | Michael Shank Racing | 6th |
| 19.4.2008 | 250 miles Mexico | 60 | #032 | Patterson / Negri | Michael Shank Racing | 5th |
| 19.4.2008 | 250 miles Mexico | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 24th |
| 19.4.2008 | 250 miles Mexico | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 1st |
| 19.4.2008 | 250 miles Mexico | 99 | #MkXI-026 | Gurney / Fogarty | Gainsco/Bob Stallings Racing | 4th |
| 27.4.2008 | 250 miles Virginia | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates | 1st |
| 27.4.2008 | 250 miles Virginia | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 10th |
| 27.4.2008 | 250 miles Virginia | 6 | #033 | Pew / James | Michael Shank Racing | 4th |
| 27.4.2008 | 250 miles Virginia | 60 | #032 | Patterson / Negri | Michael Shank Racing | 9th |
| 27.4.2008 | 250 miles Virginia | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 6th |
| 27.4.2008 | 250 miles Virginia | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 3rd |
| 27.4.2008 | 250 miles Virginia | 99 | #MkXI-026 | Gurney / Fogarty | Gainsco/Bob Stallings Racing | 14th |
| 17.5.2008 | 250 miles Laguna Seca | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates | 3rd |
| 17.5.2008 | 250 miles Laguna Seca | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 12th |
| 17.5.2008 | 250 miles Laguna Seca | 6 | #033 | Pew / James | Michael Shank Racing | 10th |
| 17.5.2008 | 250 miles Laguna Seca | 7 | #MkXI-027 | Plumb / Sigal | Sigalsport | 35th |
| 17.5.2008 | 250 miles Laguna Seca | 60 | #032 | Patterson / Negri | Michael Shank Racing | 33rd |
| 17.5.2008 | 250 miles Laguna Seca | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 6th |
| 17.5.2008 | 250 miles Laguna Seca | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 2nd |
| 17.5.2008 | 250 miles Laguna Seca | 98 | #MkXI-006 | da Matta / Vasser | Gainsco/Bob Stallings Racing | 32nd |
| 17.5.2008 | 250 miles Laguna Seca | 99 | #MkXI-026 | Gurney / Fogarty | Gainsco/Bob Stallings Racing | 4th |
| 7.6.2008 | 6 Watkins Glen | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates | 1st |
| 7.6.2008 | 6 Watkins Glen | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 29th |
| 7.6.2008 | 6 Watkins Glen | 6 | #033 | Pew / James | Michael Shank Racing | 6th |
| 7.6.2008 | 6 Watkins Glen | 7 | #MkXI-027 | Plumb / Sigal | Sigalsport | 12th |
| 7.6.2008 | 6 Watkins Glen | 60 | #032 | Patterson / Negri | Michael Shank Racing | 4th |
| 7.6.2008 | 6 Watkins Glen | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 7th |
| 7.6.2008 | 6 Watkins Glen | 91 | #MkXI-028 | Matthews / Goossens / Tiemann | Bob Stallings/ Riley-Matthews | 13th |
| 7.6.2008 | 6 Watkins Glen | 99 | #MkXI-026 | Gurney / Fogarty | Gainsco/Bob Stallings Racing | 8th |
| 21.6.2008 | 250 miles Mid-Ohio | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates | 8th |
| 21.6.2008 | 250 miles Mid-Ohio | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 25th |
| 21.6.2008 | 250 miles Mid-Ohio | 6 | #033 | Pew / James | Michael Shank Racing | 34th |
| 21.6.2008 | 250 miles Mid-Ohio | 7 | #MkXI-027 | Plumb / Sigal | Sigalsport | 3rd |
| 21.6.2008 | 250 miles Mid-Ohio | 60 | #032 | Patterson / Negri | Michael Shank Racing | 6th |
| 21.6.2008 | 250 miles Mid-Ohio | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 4th |
| 21.6.2008 | 250 miles Mid-Ohio | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 16th |
| 21.6.2008 | 250 miles Mid-Ohio | 99 | #MkXI-026 | Gurney / Fogarty | Gainsco/Bob Stallings Racing | 1st |
| 3.7.2008 | 250 miles Daytona | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates | 1st |
| 3.7.2008 | 250 miles Daytona | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 12th |
| 3.7.2008 | 250 miles Daytona | 6 | #033 | Pew / James | Michael Shank Racing | 36th |
| 3.7.2008 | 250 miles Daytona | 7 | #MkXI-027 | Plumb / Sigal | Sigalsport | 7th |
| 3.7.2008 | 250 miles Daytona | 60 | #032 | Patterson / Negri | Michael Shank Racing | 13th |
| 3.7.2008 | 250 miles Daytona | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 35th |
| 3.7.2008 | 250 miles Daytona | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 30th |
| 3.7.2008 | 250 miles Daytona | 99 | #MkXI-026 | Gurney / Fogarty | Gainsco/Bob Stallings Racing | 2nd |
| 20.7.2008 | 250 miles Barber | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates | 1st |
| 20.7.2008 | 250 miles Barber | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 9th |
| 20.7.2008 | 250 miles Barber | 6 | #033 | Pew / James | Michael Shank Racing | 3rd |
| 20.7.2008 | 250 miles Barber | 7 | #MkXI-027 | Plumb / Sigal | Sigalsport | 11th |
| 20.7.2008 | 250 miles Barber | 60 | #032 | Patterson / Negri | Michael Shank Racing | 4th |
| 20.7.2008 | 250 miles Barber | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 30th |
| 20.7.2008 | 250 miles Barber | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 8th |
| 20.7.2008 | 250 miles Barber | 99 | #MkXI-026 | Gurney / Fogarty | Gainsco/Bob Stallings Racing | 32nd |
| 1.8.2008 | 200 miles Montreal | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates | 5th |
| 1.8.2008 | 200 miles Montreal | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 14th |
| 1.8.2008 | 200 miles Montreal | 6 | #033 | Pew / James | Michael Shank Racing | 7th |
| 1.8.2008 | 200 miles Montreal | 7 | #MkXI-027 | Plumb / Sigal | Sigalsport | 13th |
| 1.8.2008 | 200 miles Montreal | 60 | #032 | Patterson / Negri | Michael Shank Racing | 36th |
| 1.8.2008 | 200 miles Montreal | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 1st |
| 1.8.2008 | 200 miles Montreal | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 17th |
| 1.8.2008 | 200 miles Montreal | 99 | #MkXI-026 | Gurney / Fogarty | Gainsco/Bob Stallings Racing | 8th |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates | 13th |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 15th |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 6 | #033 | Pew / James | Michael Shank Racing | 9th |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 7 | #MkXI-027 | Plumb / Sigal | Sigalsport | 11th |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 60 | #032 | Patterson / Negri | Michael Shank Racing | 8th |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 1st |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 20th |
| 8.8.2008 | 200 miles Watkins Glen [DP] | 99 | #MkXI-026 | Gurney / Fogarty | Gainsco/Bob Stallings Racing | 2nd |
| 23.8.2008 | 250 miles Sonoma [DP] | 01 | #MkXI-010 | Pruett / Rojas | Chip Ganassi Racing with Felix Sabates | 6th |
| 23.8.2008 | 250 miles Sonoma [DP] | 3 | #MkXI-031 | Lewis / Lester | Southard Motorsports | 17th |
| 23.8.2008 | 250 miles Sonoma [DP] | 6 | #033 | Pew / James | Michael Shank Racing | 14th |
| 23.8.2008 | 250 miles Sonoma [DP] | 7 | #MkXI-027 | Plumb / Sigal | Sigalsport | 13th |
| 23.8.2008 | 250 miles Sonoma [DP] | 60 | #032 | Patterson / Negri | Michael Shank Racing | 12th |
| 23.8.2008 | 250 miles Sonoma [DP] | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 3rd |
| 23.8.2008 | 250 miles Sonoma [DP] | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 16th |
| 23.8.2008 | 250 miles Sonoma [DP] | 99 | #MkXI-026 | Gurney / Fogarty | Gainsco/Bob Stallings Racing | 2nd |
| 31.8.2008 | 250 miles New Jersey | 3 | #MkXI-031 | Lester / Wilden | Southard Motorsports | 36th |
| 31.8.2008 | 250 miles New Jersey | 6 | #033 | Pew / James | Michael Shank Racing | 7th |
| 31.8.2008 | 250 miles New Jersey | 7 | #MkXI-027 | Plumb / Sigal | Sigalsport | 12th |
| 31.8.2008 | 250 miles New Jersey | 60 | #032 | Patterson / Negri | Michael Shank Racing | 1st |
| 31.8.2008 | 250 miles New Jersey | 61 | #MkXI-001 | Frisselle / Wilkins | AIM Autosport | 6th |
| 31.8.2008 | 250 miles New Jersey | 91 | #MkXI-028 | Matthews / Goossens | Bob Stallings/ Riley-Matthews | 37th |