The debut of the Audi Q8 spawned a new body style for the German marque: four-door coupes. But based on the success of the segment and competitor growth, we know the Q8 won't be Audi's only crossover coupe. A sleek-looking Audi Q4 is coming, though, it won't be a Q3 with a new roof. If reports and spy photos are any indications, we could see the Audi Q4 later this year with dramatic changes over its standard sibling.