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| Model | Years | Speeds | Drive Train | Trans Model |
| XLR Base | 2005-2007 | 5 Spd | RWD 3.6L V6, 4.6L V8 | 5L50E, 5L40E |
| XLR V | 2006-2008 | 6 Spd | RWD, AWD 4.4L V8 SC | 6L80 |
| XLR Base, Platinum | 2007-08 | 6 Spd | RWD, AWD 3.6L V6, 4.6L V8 | 6L50 |
| XLR Platinum, V | 2009 | 6 Spd | RWD, 4WD 4.4L V8 SC, 4.6L V8 | 6L80 |