I believe the proportion is slightly higher than average, yes. Having come here from Leicester, I can't really talk about whether it'll be noticeable or not. Some groups of international students tend to keep themselves, others don't, much the same as any other group of people.
Don't know about Politics specifically, but here's the information available on the university website (
here - not detailed, unfortunately, but better than nothing):
The population of the West Midlands is 90% white, and Coventry is 84% white. The University Community is even more diverse: the staff body is 82.5% white and 10.5% BME. The student undergraduate body is 64% white with the next largest grouping being Indian at 6%. The postgraduate body is 47% white with the next largest grouping being Chinese at 17%.
This claims 76:24, whilst
this claims 25.3% private.
It depends what you mean by "elitist". Specifically, it's academically elitist, in the sense that it only takes students with very good grades. Other than that, not really.
Sherbourne's quite nice. A tad expensive, but very new and fancy. If you happen to care, it's a slightly longer walk from there to most parts of campus than most halls.
They're mostly similar sorts of ratios. Bluebell perhaps marginally more international students.