TopGear On Ice - Subaru WRX STi takes on the Audi RS3

I'm still in the Subaru when I sweep off the track and onto the main road. The Audi's behind when a tractor leaps out from a gloomy row of pine trees. We have to swerve to avoid it but both cars collect the problem and share it between the wheels. Had we been in front- or rear-drivers, there's a good chance I'd be getting scraped off an evergreen.