Just bought a 2017 SLC 43 AMG "cardinal red" MB. So thrilled; my dream car. But lots of questions: (1) No spare tire; any thoughts on getting a collapsible spare? (2) Is there a way to increase volume on blind spot warning, etc. (3) Is there only one rear fog light or two? (4) What is the difference between the two icons on the bottom of the backup camera screen? Appreciate you help. Sure love this car!