For the best fuel economy, the TDIs are equipped with an impressive 2.0L 140hp TDI Clean Diesel engine which gets an EPA estimated 41 MPG on the highway.. 33/25 Highway/City MPGReviews: * The Volkswagen Beetle has a sleek rounded profile, and signature headlights that are recognizable everywhere, but with a lower sportier stance. The R-Line trims and the GSR have a 2.0L TSI Turbocharged Engine with 210hp