EXACTLY what I was thinking. This sort of headline chicanery is wearing thin with me. You run with the screamer ". . .mod a bumper car with a huge engine" I am going to want to watch a guy cruising at insane speeds on a public thoroughfare in a bumper car. You know I want this. You know it, and you have used such a desire for your own purposes.
What do I get? 1-2 minutes of talking, 4-5 minutes of welding, 4-5 minutes of engine placement, talking about problems, yadda yadda yadda. Aaaaaaand right at the end, "catch Part 2, on this date! It'll be cool! And deliver what you originally wanted! Thanks for doubling our click rate!"
Knock it off. While you aren't pulling a complete bait and switch ("hey, as the headline clearly states, we show you modding. Didn't say nuthin' `bout no actual running bumper car"), it's annoying. At least have the decency to wait and lead with the (short) video of the bumper car rolling around, and follow it with the build link.