If you have trouble getting the little one to stay in their pushchair then this should solve that problem once and for all. It's the Batmobile Buggy!
Don't get too excited, you can't buy this is in the shops, it's a one off. It was made by prop designer Tim Baker for his You Tube series 'Super Fan Builds', and the lucky lad who gets to ride in it is Collin Earl.
It's based on the Batmobile from The Dark Knight batman series, and is built around a car seat for safety. We have no idea how much it would cost to make one of these from scratch as Tim did, but there are probably a few Dads rushing to B&Q right now to grab supplies and have a go!
You can watch the You Tube video here. "I gotta get me one of those"