Hello, Aldrine2016 there. Instead of requesting Seanthehedgehog to write a part 3, I'm gonna write it myself.

2 minutes later, Blossom, Bubbles, Buttercup, and Road Runner finished their picnic break.

Buttercup: [patting her stuffed tummy] Ah, that was a great ham sandwich. [burps] Excuse me.
Road Runner: Beep beep!
Blossom: Now, where were we?

The four then began to walk down the road. As they did, a thought appeared in the PPG's heads and they looked at their feathery friend, who did the same. They exchanged glares as they gradually began to move faster. Then after some time...

Blossom, Bubbles and Buttercup: Race us to the finish line! [speed off in a trail of smoke]
Road Runner: Beep beep! [speeds off in a trail of smoke as well]

Their race continues, with Blossom in the lead.

Blossom: I'm gonna win!
Buttercup: No, I'm gonna win!
Bubbles: [goes next to Buttercup] No, I am!

As they were arguing, they ran past Wile E. Coyote, who was wearing ACME Roadrunner Boots. He got into the same position that the four did at the start of the race and dashed after the Road Runner and his competitors.

Upon hearing Wile E.'s footsteps, the Powerpuff Girls stopped arguing and looked at their avian friend's predator, back in pursuit.

Blossom, Bubbles and Buttercup: Uh oh, he's back!

Road Runner, hearing the girls, looked at the coyote and held up a sign that said "Not again". Soon, they passed a "Danger Bridge Out" sign and saw that they are heading for a canyon.

Bubbles: Road Runner, are you serious? There isn't any bridge. We're gonna fall.

But Road Runner has the best ideas as Blossom has. He held up a sign that said "I am very fast, you know? Now hop onto my back, girls".

The Powerpuff Girls followed Road Runner's orders and then he speeded over the canyon so fast that he didn't fall, and, leaving behind a giant smoke fog, safely ended up on the other side. Blossom, Bubbles and Buttercup hop off of him.

Wile E. runs into the giant smoke puff left by the bird over the cliff, stopping at the edge. The cloud then dissolves revealing him in thin air. The Powerpuff Girls and Road Runner point down at the coyote to where he was going to fall, to which he looks down at the deep cliff and, panicked, grabs onto the edge of the cliff with his hand.

Buttercup walks over to the coyote and begins loosening each of his fingers one-by-one.

Buttercup: This little piggy went to market. [removes Wile E.'s pinky finger]

Wile E.'s expression becomes slightly desperate.

Buttercup: This little piggy stayed home [removes Wile E.'s middle finger]

The coyote grows more worried.

Buttercup: This little piggy had roast beef [removes Wile E.'s index finger]

The coyote becomes shocked, seeing his thumb as his only finger remaining. But Buttercup sees this and pretends to become sorry for the coyote.

Buttercup: Oh, I'm sorry. Your thumb doesn't count as a piggy.

Wile E. sighs with relief.

Buttercup: Because that is the perfect time for me to do THIS!!!! [punctuates the "this" in her sentence by stomping on the coyote's thumb, HARD]
Wile E. Coyote: YEEEEEOOOOOOOOOWWWWWWWWW!!!!!!!!!

He jumps away from the cliff, sucking his thumb as if he were a baby. Even Buttercup's stomp was strong enough to make tears of pain flow from his eyes. After he was done sucking, he angrily growls at Buttercup, who points down to the cliff where he was going to fall. Wile E., realizing this, is suddenly taken by gravity and falls to the ground below, leaving behind a giant puff of smoke upon impact.

Buttercup: Well, that takes care of our mean coyote.
Bubbles: But how about the race? We're on this side of the cliff, and the other has our racing road. Now we can't determine which one of us is the fastest.
Road Runner: [holds up a sign reading "Remember what I did to get us on this side?]

Blossom, Bubbles and Buttercup nod their heads meaning 'Yes".

Road Runner: [flips his sign to read "Well hop on my back"]

The PPGs obeyed Road Runner and then he, like before, speeded over to the other cliff, gravity failing to take him.

Blossom: Phew! Thanks, Road Runner. Now, let's finish our race, shall we?

Buttercup, Bubbles, and Road Runner nod "yes" to her.
They then get into the same positions that they did at the start of the race and away they ran.

Blossom: This time, let's not argue. That will only decrease our chances of winning.
Bubbles: [Sees the finish line up ahead, 45 feet away from them] There's the finish line.
Blossom: Yes, and I added a tripwire camera so we can see who crossed the line first.

But as soon as she said that, they soon stopped and walked slowly, panting and sweating under the hot sun.

Buttercup: [panting] So. Hot. Can't. Run. Fast.....

The four took another break and Blossom spills over some birdseed to her avian competitor for him to peck at. Then she and her sisters drank some water to refresh themselves, saving some for the bird. They handed their bottles to Road Runner, who drank them and wiped his beak after doing so.

Blossom: Hey, I don't feel so hot anymore.
Bubbles and Buttercup: Us too!
Road Runner: Beep beep!
Blossom: But for now we have a finish line to cross, ASAP!

The four, refreshed, then resumed to dash to their line of winning.

Blossom, Bubbles and Buttercup: We're gonna win!
Road Runner: Beep beep! [goes into supersonic speed]
Bubbles: [gasps and catches up to the bird along with her sisters, speeding up as well]

Blossom, Bubbles and Buttercup are now next to the Road Runner, still running as the fastest they can. They cross the finish line and trigger the tripwire camera, which takes a photo of them crossing the line. Both girls and bird halt and take a look at the resulting photograph.

Bubbles and Buttercup: Huh? [take a look at the picture]
Bubbles: All four of us are on the finish line at the exact same place and time.
Blossom: Uhhh... [gets glared at by her sisters] I guess all four of us are the fastest, no matter what.
Road Runner: Beep beep!
Blossom: [looks at her watch] Oh, look at the time, me and my sisters have to go home now. Bye!
Buttercup: [holding a camera] But first, how about a selfie with Beep-Beeper here?
Blossom: [sighs] I hate to admit it, but OK!

Buttercup puts the camera on a tripod and sets the countdown to 5. She and her sisters then fly to Road Runner and they all pose as the camera flashes, processing a photo of their group pose, which Blossom puts in the photo album.

The End.