The same two guys just did the Volvo xc60. Expected 0-60 was 6.4 with some tests showing 6.6. At their same altitude it did 6.99, so about half a second off other tests for the xc60. Do some very inaccurate math and a ratio adjustment to the X1's 6.1 and you get about .4s-.6s difference which puts the X1 (projected) at 5.5s-5.7s for 0-60.
Hopefully someone will do a review of the X1 in better 0-60 environments since we don't have any non BMW originated 0-60 numbers yet.
Here's the video:
*spoilder, the guy saying the xc60 will be faster than the X1 rides the scooter home*