f0xr0x

Hi. Newbie here. I'm thinking of buying the Chrysler as a replacement for my current car, which is a 2012 Skoda Superb 170 elegance, with a 2.0L 170 bhp diesel manual. According to the car, I'm averaging about 47mpg and I cover roughly 20,000 miles per year. Would anyone be able to give me rough idea of the comparative overall running costs, assuming nothing goes wrong with either car? I'd love to buy the 300C, but I would struggle to convince Mrs f0xr0x if it would be significantly more expensive to run than the Skoda.