Built around a highly efficient diesel engine that’s good for 58.95mpg (3.99L/100km) in mixed driving, the car is an attempt at using a great deal of technology to build a car that is conventional in nature but exceptional in fuel performance. The idea isn’t new, but Audi’s implementation appears to be remarkably successful.
Rated at 120hp (88kW) and 213lb-ft (290Nm) of torque, the A4 TDI Concept e’s engine is a standard direct-injection TDI diesel unit. Though 120hp may not be the sort of power you’d find in a sport sedan, it’s enough to roughly match Toyota’s Prius in acceleration, clocking in at 10.7 seconds to get to 62mph (100km/h) and a top speed of 128mph (206km/h). With better combined fuel mileage than the petrol-based hybrid Prius, the A4’s efficiency and luxury specification make a strong case for production.
Source: Motor Authority