Least used function or feature on our cars?

[Jonathan]

I'm not terribly fond of the stock cupholders on the D...

[Horsebox]

Satisfying the door lock "not locked" light on the centre console. Making it go away by locking the doors whilst we're inside it.

What is the point of that system anyway?

We obviously have no money otherwise we'd own an Aston.

[mr_maxime]

windshield washer, heater and spare tire.

rear defrost really seems unnecessary though. ive scrapped ice off front windshield but never had to defrost the rear