I know I'm guilty of pointing out some of these comparisons are not really comparisons (i.e. of two cars that are for different markets), but I just had to throw out the Alfa 4C. It's a gorgeous car, and somewhat in the CLA45 AMG's (though a lot more in the Cayman's, Lotus, or SLK) market. If I had a garage of my own I would consider this as a secondary toy. Sure it's low on power and has the engine from a Guiletta, but when your car is that light (~2500 lbs in the US, in the EU it is only 1973 lbs!) you don't really need all that much power. Yes it's a rather pointless car, but I'll be honest, if I had a garage and both were out at the same time, I'd seriously consider this car, practicality be damned!
It was priced at around $54k in the states, which is comparable to the CLA45, though given how much carbon fiber is in the car who know exactly what the price will be when it actually comes out. It will sure stand out at the Chrysler and Fiat dealerships though!
2014 Alfa Romeo 4C First Drive - Motor Trend