Volvo has for a while now offered the S90 in plug-in hybrid form. The powertrain consists of a supercharged and turbocharged 2.0-liter I-4 engine, which makes 313 horsepower and 295 lb-ft of torque, combined with a rear electric motor rated for 87 hp and 177 lb-ft.
Not only does the rear motor give the S90 its all-wheel-drive capability and (limited) electric-power-only range (a lot more on this in a moment), the motor teams with the gasoline engine to produce claimed total peak outputs of 400 hp and 472 lb-ft (which we’ll agree might be possible in the lower gears).
Along with an eight-speed Aisin automatic gearbox, the engine/e-motor combo makes for a quick executive sedan despite the car’s 4,699-pound curb weight. We tested its acceleration and found it makes the 0-60-mph run in 4.7 seconds and covers the quarter mile in 13.3 seconds at 104.2 mph. It also stops well, coming to rest from 60 mph in 110 feet.