get a disc
if you want to blow some money on doing your local 10 faster, then get a rear disc – that actually will make you faster in most conditions. deep section carbon rims look great but their aerodynamic advantage over normal wheels is pretty minimal. plus, discs look (and sound) really cool.
if you just want to generally go faster without training then light weight is what you need, and the lightest wheels in your price range won’t necessarily be carbon. have a look on weight weenies for some candidates and see if they look cool enough for ya 🙂