The Ferrari 812 should be practical enough for family use if its cabin layout suits your passengers. Useful size figures include 2025 6.5L Competizione A: 4696 mm; 2025 6.5L Competizione: 4696 mm; 2025 6.5L Competizione A: 1971 mm; 2025 6.5L Competizione: 1971 mm; 2025 6.5L Competizione A: 1276 mm; 5 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.