Quick wheel offset/bore Q

[MoelyCrio]

Mytyres have sent me my winter tyres. I used their onsite configurator which suggested a 16 rim instead of the 18s. Lo and behold it doesn't clear the caliper.
17s will, however they need to know the wheel specs.

I looked online and www.wheelfitment.eu suggests PCD 5 x 114.3, Center Bore 66.1 and an offset of 47.

Cast onto the wheel is "7.5J x 18 5CH 47" (except the 'half'is 1 over 2)

Are these the same thing and what is the correct spec?

Thanks in advance.

[Krikkit]

What you've got cast onto the wheel is the width (7.5"), size (18"), number of studs (5) and the offset (47). So the info you've looked at online looks correct so far, the only things you don't know are the bore and PCD, but they are very standardised for brands etc, so I'd trust the site.

What vehicle is this for?

[MoelyCrio]

Ah, didn't realise the 7.5 was inches. European cars in imperial??

Its a 2008 Renault Laguna Coupe. Some models came on 17 inch wheels, so I'll get them to send those.

Anyone experienced Mytyres.co.uk returns process? The things have got to go back to Germany!