accessory question

[BMW X5]

this is going to be a :noob: question but i'm . looking over some accessories i see 2 types of rubber mats the actual rubber mats or the liners. which ones would you guys suggest (i had the $tealer provide the rubber mats but thought he was going to give me the liners instead) so trying to figure out if i should press for it. additionally i'm trying to think ahead and want to get the rear seat cover so there are 2 types the one that seems like a heavy duty with no seatbelt pathrough and one that allows for seatbelt passthrough. the latter has 2 options with or without 3rd row. does that mean that i will come with an extra 3rd row cover as well or...

i had the dealer also throw in wheel locks for me but the shop was closed so i couldnt get them installed. should i go back and have them do it (hr drive) or should i just go to local spot and have them throw on?

any other accessories i should get?

[m332is]

I went with the liners and think they do a great job to cover a wider area.

Vince