God people are thick, mostly BMW lovers, not sure why, I guess someone has to buy those Bavarian pieces of s**t. As stated a million times, this is a mule, not the actual RS3 or next generation A3! It's using the shell of the current S3 Sportback. Simple. As an Audi driver, an RS3 is pointless, devaluing the brand by offering something too premium for too small a price, just buy an RS4.
This 2.5-liter turbocharged engine produces 340 horsepower and 450 Nm of torque. Weight of the RS3 will likely be very similar to the TT-RS(1,450 kilograms (3,196 pounds). That means 0-62 mph(0-100 km/h) in around 4.6 seconds and a top speed around 179 mph (288 km/h).