0:00:02 > 0:00:03Hello, I'm Bitz!
0:00:03 > 0:00:05And I'm Bob!
0:00:05 > 0:00:07- BOTH:- We love make and do!
0:00:07 > 0:00:10And with a little bit of know-how...
0:00:10 > 0:00:11You can do it, too!
0:00:11 > 0:00:12Let's go!
0:00:12 > 0:00:17# We can work it out
0:00:17 > 0:00:19# Whoa, whoa, whoa
0:00:19 > 0:00:20# Ah, ah, ah
0:00:20 > 0:00:23# We can work it out
0:00:23 > 0:00:26# We'll invent a way
0:00:26 > 0:00:28# Through ideas and play... #
0:00:28 > 0:00:31- Bitz and Bob! - # Will save the day. #
0:00:31 > 0:00:34Bitz and Bob, Bitz and Bob, Bitz and Bob!
0:00:34 > 0:00:38Do you remember what happened with the Desert Ranger 3000, Bob?
0:00:38 > 0:00:42Yeah! We added stuff to make it the Desert Ranger 4000.
0:00:44 > 0:00:47We over-engineered our vehicle.
0:00:47 > 0:00:50- Hey, hey!- We added wings, a hammock and a slide.
0:00:50 > 0:00:54But then it didn't work properly for what we needed it to do.
0:00:54 > 0:00:55Ah!
0:00:55 > 0:00:57- Oh, no!- We're stuck!
0:00:59 > 0:01:03Ah! The slide's been dragging along the road.
0:01:04 > 0:01:08Lots of things are engineered for a special purpose.
0:01:08 > 0:01:12To go over bumpy surfaces, this car has big chunky wheels
0:01:12 > 0:01:15and its body is high off the ground.
0:01:15 > 0:01:19Or to go really fast, racing cars have smooth low bodies
0:01:19 > 0:01:23with super grippy tyres to give them a good push.
0:01:23 > 0:01:24Brrrrum, brrum, brrumm!
0:01:24 > 0:01:26Now it's your turn to try.
0:01:26 > 0:01:28Woohoo!
0:01:29 > 0:01:30Oh, look.
0:01:30 > 0:01:32They've got loads of things
0:01:32 > 0:01:35they can use to make a car with.
0:01:35 > 0:01:40And they're designing their cars to get down this track.
0:01:41 > 0:01:44Look at this car. It has a double layer on it.
0:01:45 > 0:01:47Wow, that's so cool!
0:01:47 > 0:01:49They're putting wings on theirs.
0:01:52 > 0:01:55Oh, yeah! And they're off!
0:01:55 > 0:01:59Oh, no! Their cool car is too big.
0:01:59 > 0:02:02Whoops! They can try again!
0:02:04 > 0:02:06Here's the next team.
0:02:08 > 0:02:10You can do it!
0:02:10 > 0:02:13Oh, nearly!
0:02:13 > 0:02:14It's a bit too tall.
0:02:14 > 0:02:18Although their cars look so great, they've been over-engineered
0:02:18 > 0:02:22with too much stuff and they can't get down the track.
0:02:22 > 0:02:27That's just like what happened with our Desert Ranger 4000.
0:02:27 > 0:02:29It's time for a Bitz Brain Blitz!
0:02:31 > 0:02:35First, the slide was dragging along the road, slowing us down
0:02:35 > 0:02:38and making the ride bumpy.
0:02:38 > 0:02:42And now we can't drive up this hill because it's still too heavy
0:02:42 > 0:02:44with all the extras we added to it.
0:02:44 > 0:02:46We over-engineered it.
0:02:48 > 0:02:51Come on, let's get rid of everything we don't need!
0:02:51 > 0:02:54I want to use it for exactly what it was designed for
0:02:54 > 0:02:58and that means losing the extra bits that were slowing us down.
0:02:58 > 0:03:00# We're on our way to the big cactus... #
0:03:00 > 0:03:03We're moving much faster now!
0:03:03 > 0:03:05They're re-engineering theirs.
0:03:05 > 0:03:09Cool! Let's see if it's fit for the job, Bob.
0:03:09 > 0:03:11Go!
0:03:11 > 0:03:13Oh, it's still too tall
0:03:13 > 0:03:15to get under the low bridge.
0:03:18 > 0:03:21You're going to have to take off more.
0:03:21 > 0:03:22Aw!
0:03:22 > 0:03:25There's no more double-decker,
0:03:25 > 0:03:27but maybe this car's fit for purpose now
0:03:27 > 0:03:29and can get down the track.
0:03:29 > 0:03:30Let's go!
0:03:32 > 0:03:34Yay!
0:03:34 > 0:03:36Oh, yeah! Let's see it again.
0:03:44 > 0:03:46Yay!
0:03:46 > 0:03:48Awesome!
0:03:48 > 0:03:49That's it!
0:03:49 > 0:03:51Steam pink style!
0:03:51 > 0:03:55Keep engineering and inventing away to save the day!
0:03:55 > 0:03:57- BOTH:- You can do it, too!