AUDI, like Subaru with its Outback and Volvo’s XC70, believes that some buyers are willing to forgo the bulk of an SUV for a ‘crossover’ that combines all-wheel drive ability with the lightness and litheness of a traditional wagon. Except that it costs around $20,000 more than the equivalent Q7 SUV, the Allroad TDI quattro has all the ingredients to give premium SUVs a real scare. Even as it is, the Audi is a real luxury segment contender anyway.