Our spies caught the 2010 BMW X3 during a fuel stop in Sweden. The three units of the next-gen X3 look sleeker, and more refined, in the 90-second tape.

The next generation 2010 BMW X3 was caught on video during sub-zero road testing earlier this week. Spied during a morning fuel stop, the three X3 prototypes were being tested under winter conditions in Sweden.

In the video, you can see that the next generation will have a sleeker design, with angled headlamps encasing bi-xenon lights. There appears to be a less cumbersome front, and a more refined tailgate. No longer does the rear spoiler look like it was just tacked on; now the spoiler seems to fit with the design at the back. Round taillights look like they may be LEDs. Two of the SAVs are riding on five-spoke alloy wheels, while the first looks to be using a multi-spoke wheel seen in previous spy photos. Interior space should see an increase, with the driver and passengers having access to new gadgetry. No word yet if the X3 will have the same HUD as the X6, but it would be a nice option.

Hopefully, the weight of the new X3 will be lighter than the current model, because engine choice is expected to be similar to the present-day offering. Two petrol options, one getting about 230 hp and the other getting over 300 hp, will complement the four diesel choices. The diesels start at 175 hp and climb up to about 300 hp. There has been a rumor that one of the engines available will be the 3.0-liter twin-turbo inline-six producing over 300 hp.

The 2010 BMW X3 is expected to make a debut by the end of this year.