Manufacturers Warranty, is it worth it?

[FarmerPug]

i was going to say "ach yes the diesel is more economical, but the petrol is still faster and sounds much nicer"
but now there is only the sound:
http://www.autotrader.co.uk/classified/ ... ?logcode=p
740i sport 0-60 = 7 secs
and the diesel alternative:
http://www.autotrader.co.uk/classified/ ... ?logcode=p
a not sporty E320 CDI 0-60 6.8 seconds