Yes, another drag race from the folks over at CarWow. This one’s a family affair, with the Audi RS4 Avant lining up against the Audi RS7 Sportback.

Sounds like one-way traffic, right? Well, turns out it’s not that simple. We’ll leave you to watch the video to see what we mean.

As a reminder, though, the RS4 Avant generates 331 kW from its twin-turbo 2,9-litre V6 heart, while the RS7 Sportback makes 441 kW courtesy of its twin-turbo 4,0-litre V8 engine.

While both are all-wheel drive, the RS7 is obviously the heavier of the two.

Watch the video above to see the two Audi siblings take part in a few drag battles, a couple of races from a rolling start and two brake tests...