I've owned 3 Evo's.
2x 8MR 320's
1x X300SST.
The X averaged 20mpg and was hit with lots of faults, I didn't like it and sold it.
The 8's were brilliant. 22mpg, £120 6 month service, £240 12 month service and £400 for the major service.
Tax was same as Teg, wasn't really that expensive...