Took some rolling shots yesterday of friends BMW's. I used a Nikon D5200 with an 18-140mm lens. I had a 1/30 shutter speed and an aperture of about 11 I think and ISO 100. I was just hanging out of the window from the rear seats with the camera on continuous high speed shooting
I like both of these. I realize that these are only two of your images, but be careful not to overuse the sun flare, which I'm assuming that you added in post.
Both pictures are great, but the top image is my favorite ... but I'm a sucker for 3ers in what looks like Estoril Blue. I also like the top image for the uncluttered background.
For both images, my personal preference is to see all the windows up ... windows down is distracting for me.