I use them a lot. For smaller bits it works out cheaper to go to the dealer as the p&p cancels out the saving. If you are ordering a lot of bits or large items then you can save a fair amount. i saved about £15 on my service parts. Shop4parts p&p is calculated by weight so bigger the order better the saving
yes as others have said the P&P can make the difference if you have a fiat dealer locally However if your like me in the Sticks the P&P often beats the cost of petrol Shop4parts have always done me well with decent service (once had a problem and they dispatched the correct goods and collected the wrong goods) (( A long story but not their fault or mine directly but fiat had their no's wrong))
i would happily use them again...
Edit: Harrison Donate to the Fiat forum and get a discount....
buypartsby.co.uk are cheaper and offer a very good service. P&p is also a set amount depending on where you live for your whole order not for each item. I had aload of stuff sent to Ireland for just £25 so well worth looking at them!