Hey CM, Good thread, I am in a similar situation.. All those choices were in the mix for me though the GLA is sort of appealing. Are hatches the only consideration, the Shooting Brake is a head turner.. I note there are no BMWs in the list, not that I blame you they don't hit my switch but the 4 series has some good points.
At the moment I admit the S3 has me thinking..
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