Mixing the tyre ratings front/rear

[dynamicq]

I have 91V at the front and looking at the 94W at the rear. Will that be a problem? Safety wise, not insurance wise.

 

[AMGeed]

Put your car registration into the tyre load rating boxHERE and check which is the correct one.
The 94 rated tyre is recommended for a heavier car than a 91 rated tyre.

The V rated tyre is recommended for speeds up to 149 mph and the W up to 168mph. No worries on that score for your car

 

[190]

It's not likely that your car requires a 94 load rated tyre and although It may be safe, using a higher than spec load rating will mean it's stiffer and may spoil the ride.