The BMW 2 Series should be practical enough for family use if its cabin layout suits your passengers. Useful size figures include 2025 218 Sport Package: 4546 mm; 2025 218 Sport Package: 1800 mm; 2025 218 Sport Package: 1445 mm; 2025 218 Sport Package: 2670 mm; 2025 218 Sport Package: 5. 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.