Sources: Volvo Cars , 
quote: The only reason to do both would be lag I suppose
quote: I drove the Focus ST, a 2.0l I4 rated at 263HP (FWHP, NOT BHP) and it felt quite laggy with the AC on. To the point it was relatively easy to stall with such a heavy clutch.
quote: I4's just don't produce enough low-end torque to start a big turbo (like the one that will be required to produce an additional 100+HP)
quote: The concept looks great
quote: I'm always looking for a vehicle that can haul bikes and RC planes that doesn't look to nerdy.
quote: Not sure I trust volvo's reliability but I like it a lot.
quote: Ultimately, they should ditch all the forced induction and beef up the electric drivetrain. If they could hit 40 miles EV of range, and gotten 120-150hp out of the electric motor the overall product would be better and simpler.
quote: Why replace the V8 at all though?
quote: The option for just the ICE drivetrain with none of the hybrid crap.