9. Diamond DA40
The Diamond DA40 completes our list with its outstanding mix of economy and performance. Although first more costly to purchase, its long-term running expenses—average $140 per hour—show quite fierce competitiveness. The diesel engine choice of the aircraft offers great fuel economy; its composite build lowers maintenance needs. While its great glide ratio and steady handling qualities make the DA40 a perfect platform for advanced training and cross-country flights, its upgraded avionics and safety features equip students for current aircraft operations.