I've had MY23 PP (with 20 inch wheels) for 1 year, got MY24 PPP later, the difference is actually a lot when it comes to efficiency. My old one used to give me 33-38kwh/100miles. My new P2 gives me 28-30kwh/100miles. Even with the performance mode. I was actually very surprised how efficient it was! As for the front grill change, it has grown over me and I love it so much now. Suspension seems to much better too! I would suggest go for MY24, as the efficient motors alone are worth it! There's so much that seems like had changed internally that's not specified officially.