coolanks

Hi, we are expecting our first child and I am on a hunt of a car seat and protectors to protect my Brand-new AUDI Q5 TFSI sport. It has Leather sports seat.
I want to choose my own car seat rather a fitter tells me a particular model and save time in doing window shopping. anyone has an experience on this and can guide me..What I am looking for :

- Dimensions should I choose in the car seat for this model. note: only 1 kid newborn to 4 years type seat
- Car seat protection hack!. I would buy a car seat protector but keen to hear your experience.
- Lastly any car seat that you recommend.

Really appreciate your support