Which motor vehicles may freely choose their lane inside built-up areas?

Inside built-up areas (innerorts), the German traffic rule allows all motor vehicles with a permissible total mass of up to 3.5 tons to freely choose their lane, even if they are not using the leftmost lane to turn left. Heavier vehicles like trucks with a greater permissible mass must generally stay in the right lane, except when preparing to turn, overtaking, or where it's otherwise indicated. This rule helps keep traffic flowing smoothly and safely in urban environments. So, your selection is correct because passenger cars, motorcycles, and small vans (up to 3.5 t) have this lane freedom within cities.