With 28% off the usual mothercare price, this is the cheapest I've seen one of these maxicosi carseats, with the 5% quidco it takes it down to £85.50. Also available in pink.
Plus as there is a voucher code for 10% off at mothercare if you spend over £100 (code is - VDW6, thanks bulgariafairy) you can effectively buy something for £10 for free!
I bought the car seat = £90, winnie the pooh bath = £10.49, this came to £100.49, somehow postage was free, and the voucher code took the price to £90.44 total. As I went through quidco, I should then get 5% cashback.