Self-employed

You can. If you are using a TurboTax Desktop/download product, after you finish filing the first T777, you will be asked if you have more than one employer, answer Yes. This will prompt the software to open another T777 form > add the second vehicle expenses in the second form.  You can add all your non-vehicle expenses under the fist form. 

If you are using a TurboTax Online Product, under the same T777 from, you can add another Vehicle.

TTD:

TTO:

I hope this was helpful