Jake,
We are WAV motability customers. We had a nearly new as our first vehicle, they are as rare as hens teeth so you you may need to move quickly. Our AP was still quite a lot of money as the vehicle was only six months old. The obvious disadvantage is that the lease is only for three years, we actually managed to keep ours for nearly seven years with a two year extension, help from a global pandemic and a wait of over a year for delivery. The massive advantage of a nearly new is that there is no waiting time. Wish you every luck in the world.