Others have posted longer term solutions (bigger cup, skill issue, etc). In the immediate situation you have some options:
- Decant to another cup. There's no way to do this without creating a mess.
- Put a plate under the mug and carry it back to the desk with a couple of paper towels to clean up the mess (if work is urgent)
- Leave it on the counter and sit there for 5 min till the top can be sipped before going back to the desk (if work can wait)
Correct, it should be Dirt Rally 2. Highly recommend that for real rally simulation.