When I first got my Westy, it came with those awesome factory 14" wheels. If you've had them, or (gulp) still have them, you know that your Westy feels a bit like the girl in this video whenever a truck passes you on the freeway (fast forward to 25 seconds into the video).
Your Westy with 14" Rims are kinda like this chick in her high heels...
One of the first upgrades I did was to toss the 14" rims and tires and upgrade to some fly 15" rims and tires. The jump in driveability, stability, and looks was huge! It felt so much more planted on the freeway, and I wouldn't get blown over 2 lanes when being passed by a Semi (I'd only get blown 1 lane). I picked up the rims for $250 from a guy in San Diego selling them on Craigslist. I had to add new tires ($100 each corner), and have longer studs installed in the back (another $60 for 10 x rear 72mm studs purchased here). Then I had a shop install the studs for me and that ran me another $150. All in I was out over $850!
Here's a shot of Penny with her fly 15" wheels
The 15" wheels and tires were great, they were a nice visual upgrade and greatly enhanced the handling. Around November of 2015, I decided that I wanted to build Penny to be able to handle moderate off-road travel which I would encounter on extended overland trips to places such as Alaska, Baja, and eventually a trip to South America. I knew the street tires wouldn't work so they had to go. The 15" rims that I had also wouldn't fit the new look I was going for so I decided to replace them too.