The Mazda 6 should be practical enough for family use if its cabin layout suits your passengers. Useful size figures include 2023 Sedan 2.5L High Plus: 4865 mm; 2023 Touring 2.5L: 4800 mm; 2023 Sedan 2.0L: 4865 mm; 2023 Sedan 2.5L High Plus: 1840 mm; 2023 Touring 2.5L: 1840 mm; 10 more variants. 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.