AUDI has created the world’s fastest wagon in the RS6 Avant, which runs a storming twin-turbo V10 with 426kW and 650Nm of torque. Unlike any performance wagon in existence, it can blast to 100km/h in a claimed 4.6 seconds despite weighing more than two tonnes. Seating five, this ferocious family car will be limited to a small group of wealthy customers given its sticker price of $270,946. It comes loaded with luxury gear and suspension and brake upgrades, in line with those massive power and torque levels.