Did that $52k include dealer markup? Pretty sure they top out around $40K fully-loaded.
Seattle/Washington charges you money based on the weight of your vehicle, which is reasonable since weight is the primary driver of road wear. A lighter vehicle costs the city and state less money in maintenance.
Sales tax in Seattle is also relatively typical for a city, and applies to every product you buy. It has a very similar sales tax rate to cities like Nashville, Memphis, Phoenix, and New Orleans.