In the US there used to be a company called Circuit Leasing, which apparently ceased to exist in 2007. Then there was The Service Car Group, was does not seem to be around either. But the arrangement was, Circuit Leasing was not owned by the WT; it was owned and operated by some brothers. Each year Circuit Leasing purchased a couple hundred vehicles and leased them to the WT Society for 3 years. At the end of the 3 years, the WT would swap them out for new vehicles. This arrangement was staggered; by that I mean for example, let's say there are 30 CO's in one state. 10 CO's would get new vehicles in 2000. 10 others would get theirs in 2001, the remaining 10 would gets theirs in 2002. In 2003 it would be time for the first 10 to swap their 2000 models for 2003 models. The next year the second group of 10 CO's would swap their 2001's for 2004's. And so on.
The old vehicles would be returned to Circuit Leasing (as would happen with any lease company), and Circuit Leasing would offer them for sale to the individuals in the congregations. The cars would also be available for "outsiders" if they wanted them. The cars were all in great condition, and the prices were fair market prices.
I purchased one in 2005 and I still have it. At my request they emailed me a list of the available cars in my state, for me to choose from. The list showed the colors and the mileage; all cars had the same options. I could have chosen any car from any state - for example if I wanted a particular color - but then I'd have to go get it. I choose one off the list and sent a deposit. Then they notified me what date I had to pick it up. When I got there, the car had been completely serviced, new tires put on, and the gas tank was full and it was in showroom condition. Some of the factory warranty was still in force since it was just under 3 years old. The CO who had it drove it there and was picking up his new one. He gave me a folder containing all the maintenance records and all the receipts for all the maintenace that had been done - which was pretty much just oil & filter changes, wiper blades, and such. Almost 6 years later I still drive it. I've never had any trouble with it and it's still in perfect condition. I replaced the battery and now it's time for new tires.
Over the years I heard from various JW's that they were very happy with the cars they purchased this way. I would buy again although I do not like the Buick LaCrosse they started using after the LeSabre's were phased out. I'd buy a Lucerne though.