Car seat query please UK only? xx?

Ok I have my buggy>>a href="http://www.mothercare.com/Bebe-Confort-Loola-Pushchair-Oxygen/dp/B000QTNXGI/sr=1-3/qid=1255522624/ref=sr_1_3/280-1591817-0218752?_encoding=UTF8&m=A2LBKNDJ2KZUGQ&n=42764041&mcb=core" rel="nofollow"http://www.mothercare.com/Bebe-Confort-L…/a and about to purchase the car seat (not quite sure if its pink but I like it lol) >>>>a href="http://www.mothercare.com/Bebe-Confort-Creatis-Fix-Infant-Carrier/dp/B001ODGQCS/ref=ts_dp_3/280-1591817-0218752?_encoding=UTF8&mcb=core" rel="nofollow"http://www.mothercare.com/Bebe-Confort-C…/a but do I need to buy the base or is it ok to be put into any car the way it is??