Volvo's tuning division managed to find an extra 21 hp and 29 lb-ft of torque in the XC90's highly stressed T8 powertrain.
Volvo XC90 T8 Twin Engine Polestar Performance Optimisation
- Our favorite reveals from the LA Auto Show
- You can probably get a great deal on a new Fiat
- 2016 Holiday Gift Guide
- Is it time to buy a Pontiac Aztek?
- Fastest-depreciating cars in the United States
- Most and least efficient car companies