The Lexus LM should be practical enough for family use if its cabin layout suits your passengers. Useful size figures include 2025 500h Standard 4 Seats: 5125 mm; 2025 350h Standard 7 Seats: 5125 mm; 2025 500h Standard 4 Seats: 1890 mm; 2025 350h Standard 7 Seats: 1890 mm; 2025 500h Standard 4 Seats: 1955 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.