235/40r19 is actually the stock setup, 245/35r19 is really a golf R tyre

Here is my Passat 206 (stage 2) that I track occasionally (also have a 6sp golf R) on APR 01 19x8.5- 245/35r19 (AD08R) front and 255/35r19 (Michelin PS4S* - runs wide) rear

The 255/35r19 is pretty close in rolling diameter to the stock size, but still smaller

I did have 245/35r19 AD08R all around but the rears were heat cycled out so put on the PS4S* that was lying around.

Once this set goes I am going to go 245/40r19 square

A 35r19 profile tyre will always look too small on a B8 Passat unless you’re lowered quite a bit