Do you have a higher DPI screen? Looking at it on my SP3, it is apparent that it was a really noisy photo, as a result, some of the colour information in the highlights has been clipped, looking at the 'darker bit' of the car on the front left, we see tell tail noise removal signs. Given that you were 1/250th, you could have probably dropped the ISO down a lot. I'd really be careful using ISO more than 200 on a low end Canon.