Nice car, it might be worth you trying 'Mike Brewer buys your car'. I took my 120d MSport 3dr auto 63 plate there last year. The price they quoted was the price they paid me when I took it to them in Chesterfield, (they have another in Sheffield), they don't try and knock you down if your honest with them upfront. Gave me a grand more than 'we buy any car crew'.
Might be worth a try as an easy way to sell it, rather than tyre kickers. All the best with sale.