The Ferrari 849 should be practical enough for family use if its cabin layout suits your passengers. Useful size figures include 2025 4.0T 25km Testarossa Spider: 4718 mm; 2025 4.0T 25km Testarossa: 4718 mm; 2025 4.0T 25km Testarossa Spider: 1999 mm; 2025 4.0T 25km Testarossa: 1999 mm; 2025 4.0T 25km Testarossa Spider: 1186 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.