[JohnM]

I'm not sure anyone is running a 17.5 in the EoE, it would probably feel very slow down the straight at Boughton as that's pretty long.

Most people will be running somewhere between a 10.5 & a 7.5 in a 2wd.

Not had a go of a B5, but they look pretty good as a mid car, you wouldn't really need a rear motored car on astro.