Check out a couple of the tunes on there. But generally, the Escudo has been 'nerfed' since GT2 and even GT3. It's only fast in a straight line, this thing will not go around corners, the understeer is horrendous. It is designed for sliding around on loose surfaces, but on regular road surfaces it has far too much traction, so much that it can barely turn its wheels.
But try some of the tunes out, they might work. Personally, i've never really bothered with this car, its just not fun to drive.