Hi,
Servicing and running costs depend on the car itself - brand and model.
Also the word 'Servicing' is bit of a misnomer in this thread so far. Changing the oil & oil filter isn't anywhere near a proper service.
£235 for that full service quoted is actually about right from one of the major chains offering similar universal full services on cars. As an example there, have you actually any idea how long it actually takes to drain and re-fill transmission oil?! it's not a 20 minute job ! $50 or perhaps £35 for a full service you mention is probably the rates from the 1970's! - a full service in addition to what Halfords and others will quote you for will also include things like multiple checks of fanbelts, any clearances checking, exhaust examination, brakes examination, refilling of liquids - anti freeze, windshield cleaning etc etc.
I know some car owners who'd love to pay as little as £235 for a full service on their cars! and it's the same for tyres. It all depends on quality and the sizing you want.
'why it is so expensive' and 'what could possibly be so high' - these two statements go on a higher level. Commercial property, commercial rates and taxes and other associated 'business' costs are extremely high in the UK, these are reflected in the prices you see for goods and services. The UK's laws are very much biased for the consumer and the Business owner/person pays significantly more for everything, because they're a 'business'. Costs need to be covered and in many cases, there's also a little thing called making a profit in order to survive and put food and shelter over their families heads each day - this little factor is almost usually conveniently forgotten in many threads on forums and when talking to people etc. As to the 'reason' what could possibly be so high, then again on a higher level, the UK's pricing structure is geared higher than the US because pricing could be set at that level. It's not news anymore, but the UK's population lived on the 'buy now pay later' way of thinking, and thus stuck a lot on credit cards and borrowing. The 'price' of the goods wasn't such an important factor anymore. Thus, the manufacturers of everything you can obtain in the UK, have higher pricing to those businesses importing the goods compared to say .. the US. The USA enjoys the lowest pricing for goods at manufacturer level because of factors such as demand, US Dollar Import/Export pricing, shipping costs and different beauracratic (sp) red tape.
If you think of the above, for pretty much everything you purchase in the UK, it'll help give you a bit more knowledge into just why things are the way they are in the UK.
Cheers, DtM! West London & Slough UK!