The Audi SQ5 TDI is the first S model fitted with a diesel engine in the history of Audi. Powered by a twin-turbocharged 3.0-liter diesel engine developing 308 horsepower (313 PS), the SQ5 is capable of accelerating from 0 to 100 km/h (62 mph) in 5.1 seconds and can reach an electronically-limited top speed of 250 km/h (155 mph). Having a diesel under the hood also means that average fuel economy is very reasonable for an SUV – 7.2 liters/100 km (32.7 US mpg) to be exact. Read more »