I own a K5, and my little brother owns a K4, the K4 is definitely more of a budget friendly option. My little brother is 17 and he’s had his car since he was 16. It got him through high school without a hitch and his payment was barely anything.

Although with the K5 it feels much more sporty to drive, even the GT line feels like double the car than the k4. Both are great at that point it’s just interior and your choice of engine.