Mercedes-Benz C 300 Convertible and Sedan Comparison

Essential Differences in Size, Interior Space, Aerodynamics, and Practicality 

Are you looking to upgrade from your current convertible to a new sedan? Whether you’re swapping open-air freedom for year-round comfort or simply exploring the evolution of Mercedes-Benz style and performance, the team at Mercedes-Benz of Arrowhead in Peoria, AZ, is here to help. In this Mercedes-Benz C 300 Convertible and Sedan comparison, we’ll highlight essential differences in size, interior space, aerodynamics, and practicality. Whether you’re searching for the perfect C 300 Cabriolet or considering a spacious C 300 Sedan, this guide is your starting point. 

2025 Mercedes-Benz C 300 Sedan: Spacious, Efficient, and Sleek 

The 2025 C 300 Sedan is a well-balanced luxury car that combines elegance, space, and aerodynamic efficiency. With seating for five and a cargo capacity of 11.6 cubic feet, the sedan is ideal for daily commuting and weekend getaways alike. 

Exterior and Interior Dimensions 

The C 300 Sedan stretches 187 inches long, is 80 inches wide (with mirrors), and stands 56.6 inches tall. With a coefficient of drag of just 0.24 and a curb weight of 3,825 pounds, this sleek four-door glides smoothly through the air, offering excellent fuel economy and reduced wind noise. 

Inside, the C 300 Sedan impresses with room to stretch out: 

• 41.7 inches of front legroom 
• 36 inches of rear legroom 
• 40 inches of front headroom 
• 37.5 inches of rear headroom 
• 56.3 inches of front shoulder room 
• 55.6 inches of rear shoulder room 

If comfort and practicality are top priorities, the C 300 Sedan delivers on both fronts. 

2023 Mercedes-Benz C 300 Cabriolet: Open-Air Luxury with Compact Appeal 

For those who crave fresh air and sunshine on demand, the 2023 C 300 Convertible—also known as the C 300 Cabriolet—offers a stylish, top-down experience with plenty of Mercedes-Benz refinement. It comfortably seats four passengers and includes 8.8 cubic feet of trunk space—slightly less than the sedan due to the space required for the soft-top roof. 

Exterior and Interior Dimensions 

The Cabriolet is 184.5 inches long, 79.4 inches wide (with mirrors), and 55.3 inches tall. Though slightly shorter and lower than the sedan, it carries more weight, with a curb weight of 3,904 pounds and a higher coefficient of drag at 0.31. This makes it a bit less aerodynamic and efficient than its sedan counterpart—but undeniably more fun in the right weather. 

Interior dimensions are slightly tighter but still luxurious: 

• 42 inches of front legroom 
• 32 inches of rear legroom 
• 38.8 inches of front headroom 
• 35.6 inches of rear headroom 
• 54.8 inches of front shoulder room 
• 47.8 inches of rear shoulder room 

Should You Choose the C 300 Cabriolet or Sedan? 

If you’re a current convertible driver looking for a little more space, better year-round comfort, and improved aerodynamic performance, the 2025 C 300 Sedan makes a strong case as your next upgrade. On the other hand, if you still prioritize the joy of open-top driving and compact luxury, the C 300 Cabriolet remains a refined and stylish choice, and we can help you find a pre-owned model at our dealership. 

Visit Mercedes-Benz of Arrowhead in Peoria, Arizona, to explore both models in person and schedule a test drive. Whether you’re shopping for a C 300 Convertible (also known as the Cabriolet) or a C 300 Sedan, our team is here to help you find the perfect fit.