Definitely arcadey, those cars have like 5x the grip you'd expect and can make large readjustments while going round a corner with no issues whatsoever! I am looking for another sim, my G25 has been gathering dust since NFS Shift 1 + mods.
Considering people normally have a single wheel and PC at their house, I think more racing sims should cater for "party mode" time trails, letting friends play in any order on a chosen course and maintain a chart of everyone's best times with named ghosts selectable so you can jump in and out and compete. It seems to be such a simple thing and yet I always found games wouldn't directly let me do that.
Playing: Path of Exile, Age of Wonders III, Towerfall