You may have some misunderstanding about the Audi TFSI designation system. It is a weird system but it has nothing to do with displacement nor torque. It is an artificial calculation inversely related to 0-100Km/h acceleration speed. That’s why the former A6 had both 30FSI(2.5 NA V6) and 40 TFSI (2.0 Turbo L4. This also explains why different models with exact same engine have different designations sometimes. But yea, VW is using a torque related designation right now.Still, power equivalency is way better than 'torque equivalency' system VAG is experimenting with. Audi models now have severely inflated equivalency model numbers e.g. the Q3 30TFSI (actually a 140hp 1.4T) A4 40TFSI (190hp 2.0T) A6 45TFSI (250hp 2.0T) and A8 50TFSI (300hp 3.0SC). These cars don't even really have the torque the model numbers suggest. I call this false advertising since consumers are cheated to believing they are buying something much much better. The less knowledgeable common folks will think they are buying an A4 with a V8 when it is merely a 2.0 I4T. And this is extending to other VAG models as well. At least BMW underrate all their equivalency values. The 330i will smoke the A4 45TFSI any day, and the 340i is very comparable to a real V8.
Yet, a lot of people buy into all these BS because they think some extremely sophisticated German engineering is going on under the hood (for christ sake it's an iron block carried over from the 90s) , but complain Lexus overrate their hybrids.