A woman posted a photo of this (https://preview.redd.it/a-woman-posted-on-facebook-that-her-husband-found-this-v0-q3pp9u096qpd1.jpeg?width=1080&crop=smart&auto=webp&748ec4e8) on Facebook. It's apparently, not the actual bus that was used on The Partridge Family. Somebody just painted one to look similar (https://quickshare.samsungcloud.com/mGJNtBRMSg5a).