BMW and some other automakers have moved away from providing a traditional spare tire in some of their vehicles for several reasons:
1. **Weight and Fuel Efficiency:** Every additional pound of weight in a vehicle can affect fuel efficiency. By omitting the spare tire and related tools, automakers can improve a vehicle's fuel economy.
2. **Space Constraints:** Many modern cars have limited space, especially sports cars and smaller models. Removing the spare tire frees up space that can be used for other purposes, such as additional cargo room or battery storage in hybrid and electric vehicles.
3. **Run-Flat Tires:** Some BMW models come equipped with run-flat tires, which are designed to be driven for a limited distance after a puncture. This eliminates the need for a spare tire, as the run-flat tire can continue to function even with a small leak.
4. **Roadside Assistance and Tire Repair Kits:** Instead of a spare tire, BMW often provides roadside assistance services or tire repair kits. These kits typically include a sealant and an air compressor to temporarily repair minor tire damage.
While the absence of a spare tire can be a cost-saving and space-saving measure, it's important for BMW owners to be aware of the type of tires on their vehicle, the availability of roadside assistance, and the use of tire repair kits in case of a flat tire. The specific tire and safety features can vary between BMW models and trims.