Comfort and Convenience
With the engine start button, the driver presses it while the brake is held and the key fob stays in a pocket; the car verifies the fob electronically, then cranks the engine, so no barrel or twisting motion is involved.
Safety and Driver Assistance
The driver's airbag acts only after an impact begins, cushioning the body against the wheel. ABS works before that point, releasing and reapplying brake pressure so the wheels keep turning and steering remains possible.
Multimedia and Connectivity
A fitted navigation system handles route guidance on its own screen. That says nothing about mirroring a phone's own maps, which depends instead on the Bluetooth, USB or AUX connections and what each one carries.