Heard this morning: RS5 will be the first Audi model to have new V8 4.0-litre TFSI engine.

This is same engine to be used in new A8. It is smaller in size as well as in capacity than existing 4.2 litre V8. It also introduces a new and exotic form of twin-charging. I don't know the full details yet.

I don't know anything about new 8-speed tiptronic or whether new longitudinal S-tronic can handle torque. But it is highly likely that RS5 will share the same set-up as next A8, albeit with different performance characteristics, to minimize costs.

It is going to be a fantastic car.