Hello all,

I'm looking at buying a set of wheels and tires for my XF, but I'm told they are originally made for the F-type and the Fondmetal website confirms that.
I need your help/knowledge here.
I'll appreciate any comments.

2013 Jaguar XF SC RWD
My current setup:
OEM Caravela 19 x 8.5J ET49 with 245/40R19
15mm spacer front / 20mm spacer rear.

Setup I'm looking at buying:
Fondmetal 9RR
Front 19 x 8.5J ET 49
Rear 19 x 9.5J ET27
All with 245/40R19

I'll keep the 15mm spacers in the front but the rear I'll take off such that with an ET27 it'll be about the same as the setup I have now in relation to the wheel well. (ET49 - 20mm spacer = 29)

I'm thinking the rear tires are too thin for a 9.5 wheel???
Not only that, but I want to go wider in the rear for looks.

Here's my question.
How wide can I go with a 9.5 ET27? 275? 285? 295?

Thanks to you all and I'll add photos below.