Harrop’s its name, and supercharging is its game. But is this new combination a better drive than the old naturally aspirated 5.4-litre donk? Well, that’s what we’re here to find out.

The 2014 Lexus IS F is back for another year in similar spec as last year, while the Volvo S60 Polestar only joined the game in 2013. Can the newcomer be a match for the veteran? This isn’t your ...