loan repayments on V8s

[flooded one]

Maybe a stupid question

A mate of mines missus reckons loan repayments on V8s are higher then any other car, now I know insurance and that is higher but loan repayments?? I can't see how??? Doesn't go buy how much you borrow over a certain period of time??? Or is it because she snobs mine and the missus idea of wanting to by an 8 cylinder???

OK, my mates missus does not work nor has ever worked for a bank or any financial institution but claims this, mainly because I said I wouldn't mind looking at some of the BA/early BF FPV GT's I have seen for sale for in between $20k-$25k, then gives me this crap about how loan repayments are dearer for V8s, then gives me this diatribe about her friends KIA is so cheap to run, honestly, if I am thinking of buying a V8 I'm not to concerned about fuel economy. I have never taken a lone on an V8 powered car before. I am 30 years old been licenced since I was 17 and have never made a claim or lost me licence and am a rating one with my insurence, just wondering can someone can clear this issue up for me??

Thanks