I took my old lowered car through one once in awhile and it worked. It did seem like it may scratch the wheels though how the factory wheels are on the Fiesta. I had a scare once when I went through one with my old car where it felt like it was gonna roll over the track and off and I had to turn the wheel to get it back on track. Not sure what actually happened, but no damage was done.
I vowed to never taken my Fiesta through an automatic car wash to do my best to try and save the paint and make it last. They do clean well, but they also trap dirt on the cleaning brushes, so it's wiping dirt on your paint causing lots of those microscopic scratches in your clear coat. I started out by taking it to coin washes with only the pressure washer (because the brush also traps dirt), but even that with the high pressure isn't great for the paint plus I was drying incorrectly. I live at an apartment, so I looked up how I could wash the car in the parking lot. The two bucket method with rinseless car wash soap works best with a dreadlock style mitt. The rinseless works well because it doesn't sud up like regular soap so you just dry it off rather than hose it off. You do a section at a time cleaning and drying. A good microfiber drying towel works best. The regular microfiber towels get waterlogged too quick.
Here's the video I went by, and there are other rinseless washes so you don't have to buy theirs.
https://www.youtube.com/watch?v=FrbghlznKPQ