The Mercedes-Benz CLE Coupé should be practical enough for family use if its cabin layout suits your passengers. Useful size figures include 2025 CLE 300 4MATIC Coupé: 4850 mm; 2025 CLE 300 4MATIC Coupé: 2042 mm; 2025 CLE 300 4MATIC Coupé: 1423 mm; 2025 CLE 300 4MATIC Coupé: 4. Wheelbase and seating matter most day to day because they influence rear-seat comfort, child-seat friendliness and how relaxed the car feels on longer trips.