Have you driven a 1 series? The car isn't designed within the same standard as a 3 series. Before driving this car I had only experience BMW products that were 3, 5, X5, Z3's and 7 series'.
Stepping into the 1, I felt the interior quality to be more similar to a mini than a 3 series.
Going from the Ford first to the BMW 135i, I was more impressed at a focus st being: quieter, less wind noise on the highway, a more compliant ride, and the plastics not being as hard as the 135i.
Now if this was a E90/E92 3 series I would put it in favor for that instead... I just didn't think the 3 series was a way bigger leap over the 1 series until experiencing it first hand.
I'm not the only one who agrees with this assessment:
http://www.edmunds.com/bmw/1-series...test/2008-bmw-135i-coming-up-a-bit-short.html
http://www.edmunds.com/bmw/1-series/2008/long-term-road-test/wrap-up.html
"Because we've noticed that the 1 Series clearly lacks the refinement of a 3 Series. Misaligned trim pieces on the dash and tight interior proportions left us wanting more. Yet we've also learned that a quick, wiry personality is also unique to the 1 Series. With this subtle differentiation, BMW ensures the 3 is under no threat of becoming obsolete."
http://www.1addicts.com/forums/showthread.php?p=11302809