Great results for the 335i wagon! Clearly faster than the S4, especially when speeds increase. But I guess that twin turbo I6 slowly runs out of steam compared to the monster 5.4L V8 in the C55 when speeds are well above 100km/h. As speed increases it seems the C55 wagon will pull away from the 335i wagon (which is consistent with the European test data we see comparing the C55 sedan to the 335i coupe).
But still, that's mighty impressive for the 335i wagon, which costs significantly less than the S4 or C55 wagons. See guys, forced induction for a BMW isn't that bad, right??