| Subaru | Model Year | Closest distance between forward towers - (M1) | Distance from uppermost windshield to forwardmost tower foot - (M2) | Closest distance between rear towers - (M3) | Crossbar spread distance center to center - (M4) |
| Hatchback | 80/89 | Q32 - 36 1/4" | 4" | Q32 - 36" | 36" |
| Hatchback Max Crossbar Spread | 80/89 | Q32 - 36 1/4" | 4" | Q32 - 36" | 39" |
| Impreza Coupe w/Q Stretch Kit | 95 | Q46 - 38 1/4" | 4" | Q46 - 36 1/4" | 28" |
| Impreza Sedan | 93/95 | Q46 - 37 7/84" | 6" | Q46 - 36" | 24" |
| Impreza Wagon | 93/96 | Q46 - 38 1/84" | 4" | Q46 - 36 1/2" | 26" |
| Legacy Sedan | 95/96 | Q53 - 39 5/8" | 7" | Q53 - 39" | 31" |
| Legacy Sedan | 90/94 | Q38 - 37" | 5" | Q38 - 36" | 29" |
| Legacy Outback Wagon w/Hybrid I | 95 | Q44 - 36 1/2" | 9" | - | - |
| Legacy Outback Wagon w/factory rack & Hybrid I | 95/96 | Q44 - 36 1/2" | 9" | - | - |
| Legacy Wagon w/o factory rack | 95/96 | Q44 - 36 1/2" | 9" | Q44 - 35 3/4" | 30" |
| Legacy Wagon w/o factory rack, Max Crossbar Spread | 95/96 | Q44 - 36 1/2" | 9" | Q44 - 35 3/4" | 48" |
| Legacy Wagon | 90/94 | Q38 - 37 1/2" | 5" | Q38 - 36 5/8" | 30" |
| Wagon | 79/84 | Q31 - 37" | 6" | Q31 - 37 3/8" | 36" |
| Wagon Max Crossbar Spread | 79/84 | Q31 - 37" | 6" | Q31 - 37 3/8" | 52" |
