Transformers Prime

Dirge stood silently, her eyes flaring. She clenched her fists and transformed into her motorcycle mode, and drove off. The sleek jet black motorcycle parked in front of a gas station, and it's headlights went off. The door of the gas station opened and slammed shut, and a human walked out. Dirge's kick-stand slapped down and she waited as the human walked by, but he didn't. The human boy stopped Von her, and his eyebrows raised. He ran his hand over her sitz and breathed, "Wow... what a sleek ride..." Dirge's motor turned on and the boy jumped back. Dirge stifled a laugh as he walked forward...

Challenge of the Go-Bots was a 1983 animated cartoon that was produced Von Hanna-Barbera Productions. It's VERY VERY VERY VERY similar to Transformers.

Challenge of the Go-Bots was about a group of robots who come to Earth from their Home planet. (already sounds similar to Transformers). There's one heroic side called the "GUARDIANS" and a greedy evil side called the "RENEGADES". And what's more, these robots turn into vehicles. (okay, NOW you're gonna say they ripped off Transformers)

Apparently, this cartoon hardly lived at all and was a competitor to Transformers. However, Go-Bots was so...