IMO, DoF is too shallow.
Why are you shooting at f1.4, 1/4000ss, and ISO250?
It looks like it's daylight/sunlight, then raise your f-stop to the lens' optimal.
Like someone else said, the composition does nothing for me either.
There's not really a "formula". You just want a slow SS to allow blurring of the wheels, but not the car itself.Originally Posted by RandomGuy
I've gone upwards of 1/200 on some days.
Slower SS means you're more than likely to shake, resulting in an un-sharp photo.
At 1/50, you'll more than likely get a blurry shot with 1-hand.