Hey, For anyone interested, I managed to add steering wheel function by lowering the steering wheel formation by 1 stud (adding 3 1X1 studs horizontally to the part above the steering wheel). I added part 6261387 and connected it to the back of the chasis underneath the steering wheel formation using a blue technic pin for support (basically, to add resistence so that the formations won't collapse when I put the other parts in and ultimately activate the steeering). I added gear 4640536 to the space behind the steering wheel itself, then added gear 6133119 to the long steering rod in the floor of the car with a few stoppers to hold it in place. I connected the 2 gears using a link chain (6044702). All these parts, I used from the motorbike set 42132, as I could find it cheaply. Steering works really nicely and it's pretty cool seeing the steering wheel rotate along with the wheels as you turn the HOG. I think it doesn't impact the look of the car interior in any negative way.Hope that helps whoever wants to add that function.