Many will say coilovers are too harsh. And that you have to spend a fortune on a fancy make custom units..
However, I don't think this is the case.
I have ran GAZ standard coilovers (GHA kit I think its called), this was OK but not did feel a little harsh.
More recently I changed to the GAZ Gold coilover kit, and found it to be a much smoother subtle ride even with harder springs on than the previous budget kit.
So I would recommend the GAZ GOLDs, you can request alternative spring rates when you order them if you wanted to, but they will advise for a road or track car.