shamrode

I've had a for a couple of years a 2009 c63 in mint condition. The car is amazing; loud, fast, and aggressive. I want to sell it because it's getting oldish and now I have a buyer who will give me good money for it. Now, I saw today a beautiful 2016 A45 AMG. Question one is does this car have a limited slip differential? Question two is the car has done in 9 months 25k km. The driver was honest and told me that within that period the car needed to be topped up with oil two times. I know that the c63 when new and old needs topping up every so often. What say you about the a45?