Not sure what the actual prices will be in the States but the 308 & 328
should be about the same - in fact I think where MC Pink Pants & I get our
cars serviced the pricing is the same (his 308 & my 328). At the same place
the price of a basic 348 service is only a bit higher but the belt change
cost 3 times as much to do (same for a 355). The 355 "yearly Service" seems
remarkably cheap!

Have a look at the menu on this site & it should give you an idea of the
relative costs - it is (of course) all listed in "proper money" ;-)

http://www.hamletcg.co.uk/qv/offers.htm

I.