The only things that DC do better is rain, reflections and GI from the player headlights. Other than that i didn't see anyhting better than in Forza Horizon 4, and i say that as someone who likes DC ( still play it every week
). But that doesn' t mean that the other things are bad in DC, its car model is solid, the trees look nice and indeed the ligthing has its moments when the dynamic range is there. But Forza has much higher draw distance, overal better shadows, more natural lighting ( captured from the real thing), better car models, better textures, much more detailed environment, full environment GI, better car shaders for the most part, better snow, real deformation for sand, mud and snow, more detailed driver and 4 seasons on the whole map that changes everything from color to lighting. But still, DC is looker thats for sure.