I made a air powerd drag racer at home and this is how I made it. first I had to make sure I had a empty fizzy bottle, four plastic weels, two long metel rods and a thin shortmetel rod, a red but short plastic tube about 1 and half inchs long, a nozzle, under carrige, a pin, a set of maches/lighter, some red tape and a bike pump. Secondly I got one of the long metel rodsand tapedit on the end of the under carrige with two small bits of tape and I did the same on the other end and then I had two long bits of tape so I then taped the under carrige to the bottle they were both taped on the big part. thirdly I got my lighter/matches and heated the small metel rod until it was red and then I melted a small hole just big enough for a pin to fit in and ater the hole has cooled down put the pin in. forthly cut a hole in the lid so the nozzel can fit in tightly and screw on tightly. fithly I cut the tube into 8 pices then I put 1 pice on each end and then I put a weel on each end thenI did the same with the other 4 pices of tube. (If you have some oil put it on the weels so they spin faster).

By Jack