Take the spec from your chosen Civic and use the B*W site to build your 1 series up to the same spec level.
Then ensure you are seated before hitting the final price calculation
Additionally have a look at the 3 year residual prices. The 1 series is no longer that attractive when compared to the Civic's residuals.
In my opinion B*W seem to think that in the main all we want in a car is a blue and white badge and a speedo. It wasn't that long ago that a radio wasn't standard in them.