OP is a huge liar, you can clearly see his hand on the wheel. I expected better out of you OP, you nearly had me convinced that you let your dog drive the car for you? Your not fooling anyone, dogs can't drive and here's proof, notice how the dog hands are unable to even grip a human hand!
Here's more on why a human hand can actually grip a wheel
This assertion leads to the prediction that the human hand should be adapted for throwing and clubbing, a topic that is explored in the following report. It is shown that the two fundamental human handgrips, first identified by J. R. Napier, and named by him the ‘precision grip’ and ‘power grip’, represent a throwing grip and a clubbing grip, thereby providing an evolutionary explanation for the two unique grips, and the extensive anatomical remodelling of the hand that made them possible. These results are supported by palaeoanthropological evidence.
Source - http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1571064/
Now given this information, we can safely assume that the average human hand in the US is about 5-7 inches assuming the average height of a US male is 5'10, we would then know that taller animals tend to have larger bone structures.
The average size of a dog is 2.2 feet, which is around 3 feet shorter than the average human male in the US. This would mean that a dogs hand would also be small.
We also know (source provide) that an Extra Extra large dog would barely have palms that are 5 inches wide, the medium size would actually be 3 inches.
So assuming that a human hand fits perfectly and might be on average 5-8 inches, we know that the wheel of a car is designed by humans. Karl Benz was the inventor of the modern car, and from the wikipedia picture, we can conclude that he is in fact human. The medium sized palm of a dog would be ATLEAST 3 inches, and that isn't enough to fit and grip the entire wheel.
Source provided - http://www.muttluks.com/pdf/Paw_Sizing_Chart_2010.pdf
In conclusion, OP is a dirty liar, not only can his dog not drive since it's size is below medium, we clearly see OP's hand on the wheel from behind. This is due to camera angles, and I would be HAPPY to explain how that works.