Mercedes-Benz C-Class' handling and interior refinement. However, some noted that it doesn't handle with the agility of its sportier competitors, such as the BMW 3-Series. Buyers can select from Luxury and Sport variants, with the latter receiving tauter suspension tuning. A good reliability score means that the C-Class should be less troublesome than many competing used midsize cars.The C-Class has two available engines. Base C300 models have a 3.0-liter V6 that makes 228 horsepower, while the C350 has a larger, 3.5-liter V6 that produces 268 horsepower. There is also a high-performance C63 AMG version available. Although critics said that neither the C300 nor the C350 would likely break any speed records, most said the C300 has adequate power for passing and merging and that the C350 feels fairly fast. A rear-wheel drive C300 with an automatic transmission gets 18/26 mpg city/highway. Selecting all-wheel drive or the more powerful C350 means slightly lower estimates.