From the very beginning the Compos were custom designed specifically to clear the calipers of the LR4 (and early gen RRS with front Brembos before that, the braking system used by the original Bowler Nemesis rally car in 2006) so yeah, that includes spokes pushed out to near the front face of the wheel and interior cylinder sized and bored to clear the discs and calipers of those vehicles, while limiting the need of additional offset to a relatively negligible 9 mm or so. That makes the use of spacers unnecessary, which is not the case with the stock 18" rims Land Rover offered for its early LR3 using smaller front brakes. Those wheels were not designed with the LR4 in mind. That's why going by offset alone is not a surefire way to tell if a rim will fit or not over a certain setup.
I have seen some LR4s with 18" OEM wheels and spacers installed, the setup looks good actually. Yes, the wheels do stick out about 30 mm more, but when fitted with chunky A/Ts they nicely widen the track of the car while still staying pretty much lined up with the flared fenders above them. They don't look silly at all - to me, anyway.
I am just not a big fan of spacers personally, not for looks but for long-term safety and suspensions reliability reasons, so a simpler setup like the Compomotives was worth the extra money to me.
