In both my Mk1 Superb and Mk3 Octavia I used to keep my spare coins in the pot (ashtray) that fitted in the cupholder.

I pick up my new Karoq this Saturday but am unaware if it has a dedicated stowage for spare change.

If not, I presume that my previous solution will still work???

Under the steering wheel there's a pull down cubby, and also the cup holder in the centre has coin slots (though none fit a £1 coin frustratingly!).

There is a storage area under the arm rest that will hold two coins.  I store my car park coins in the large storage compartment on the top of the dash.