You could buy a really cheap, barely functional car for 1k. You trade it in, get a 6k bike for free, and then you sell the bike.

As linked in the thread, you must have been the owner of the car for 1 year to be eligible.

According to an earlier post, the cap is 40% of both bike and car price. If you trade in a car for 200, your max ebike refund is 80.

You might have a low value car. I just sold my old car for 600€. If I had an offer like this, and I could swap it for an expensive e-bike, even when paying for the 60% of the bike my car would have doubled its "value".

If I have an old car I need to replace I can now have a free ebike, and then I buy my new car...

Or you could sell your car, or trade in your car (+ money) for another car

It's limited to one per person anyways, it's not like the mafia was going to buy 500k cheap cars and get 500k brand new free electric bikes.