Aside from being the two quickest and most powerful four-door luxury sedans on the market, the Tesla Model S and Audi RS7 have one design theme in common: a hatch that defines the rear end silhouette and cleverly combines utility and functionality. As much as the tech-laden Tesla and luxuriously appointed Audi drive a hard sales bargain without the hatch, we'd suspect it's a main selling point because if it wasn't, why not just go for an A8?

Thing is, we're all gearheads here, so speed is a huge factor behind the appeal of both cars, especially when a $40,000+ price gulf exists between the base models and these souped-up muscle car variants. That's why Jonny Lieberman and Jason Cammisa of Motor Trend see a comparison of the two to be fitting.

Especially so when the previous top-trim versions of each car accelerated from 0-60 mph in the same 3.2 seconds. Now, there are better and faster versions of each car. The RS7 has gotten a not so subtle 40 horsepower boost over the previous RS7 while the Model S now comes equipped with a 100 kWh battery and Ludicrous Plus mode that allows the driver to put a bit of extra wear and tear on the electric motors in exchange for better off the line performance. Watch the full review to see which car is better both on the drag strip and around town.