Polestar claim the sprint of 0 - 100 km/h can take 4.2 seconds.[13][14]
Powertrain
The Polestar 1 is powered by a hybrid powertrain, using a twincharged 2.0-litre inline four-cylinder petrol engine from the Volvo XC90 T8 to drive the front wheels through an 8-speed automatic transmission, with an additional two electric motors powering the rear wheels. Combined, the total output is 619 hp and 738 lbft; at its announcement, the maximum power output was rated slightly less, at 600 hp.[15][16]
The petrol engine is connected to an Integrated Starter Generator, acting as a starter motor and torque fill during gear changes.[17] It adds 68 hp, for a total output of 326 hp and 321 lbft to the front axle.
Each electric motor produces 116 hp, for a total of 232 hp and 354 lbft to the rear axle.
Batteries
The Polestar 1 has a total capacity of 34 kWh arranged in three battery stacks (two packs), fitted behind the rear seats and along the central tunnel. This gives the Polestar 1 an all-electric range of 150 km on the NEDC. Polestar claimed that this was the largest electric range for any plug-in hybrid available at the time.[19]
Under the U.S. EPA driving cycle, the Polestar 1 has an all-electric range of 52 mi and an equivalent fuel consumption of 58 mpge. On gasoline alone, the Polestar 1 is rated at 26 mpgus for combined city/highway driving, giving an estimated range of 417 mi.[20]
Power distribution
The Polestar 1 has a plug-in hybrid powertrain, the supercharged and turbocharged high-performance petrol in-line four-cylinder petrol engine drives the front wheels. Two electric motors drive the rear wheels. In addition to these electric motors the Polestar 1 is equipped with an Integrated Starter Generator (ISG). Combined with the electric motors are planetary gear sets. These planetary gear sets enable torque vectoring, a technology used in racing to bring both acceleration and stability through curves.
Suspension and chassis
The Polestar 1 is based on the Volvo Scalable Product Architecture platform (SPA). Compared to the S90, which shares the SPA platform with the Polestar 1, the wheelbase was shortened by 7.9 in and approximately 7 in were removed from the rear overhang.[21]
It has double wishbone front suspension, connecting each wheel with two transverse links. This design enables the front suspension to counteract torque steer. Most suspension parts are made of aluminium. The rear suspension is an integral link design, with a transverse composite leaf spring. Polestar 1 is the first car with Öhlins Continuously Controlled Electronic Suspension (CESi). The CESi can be set to adapt instantly to road conditions and in accordance with the driver’s chosen setting.
The front brakes, are specified by Polestar and manufactured by Akebono, six piston aluminium Mono block calipers on each front wheel are milled from one-piece. The calipers are coupled with 400x38mm ventilated and drilled discs.
