The photo - taken from someone's car - was posted on the Spotted Droitwich Facebook page, where the scenes were compared to popular Nintendo racing game series Mario Kart.
One person wrote: "Throw a banana on their racing line... Hope they are burning good 2 stroke."
Someone else joked: "He behind them better of slowing down and throwing a blue shell get a 2 in 1."
A third added: "The one at the back looks like Bowser."
But while many Facebookers said their antics looked 'mega fun', police have warned against others following suit - saying it not only endangers those driving, but also others on the road.
PC Richard Rees, of the Droitwich West safer neighbourhood team, told Worcester News: "These go-karts aren't road legal, various offences will have been committed, and it is endangering the people on the go-karts and also other motorists.
"It is crazy. We have been asking around the Westlands estate to see if we can find out who it is.
"They look like professional karts, so I think someone will know who is riding them. They could easily be stored at someone's address, or someone has brought them along to drive, so someone will know something.
"It is no laughing matter.
"If anyone has any information who has been riding them on the road, get in contact with us."
Under the Road Vehicles (Construction and Use) Regulations 1986, for a vehicle to be driven on a public road, it must meet a number of requirements.
These include having appropriate breaking distances, correct instruments (such as lights and indicators), number plates, insurance and tax.
There must also be something covering the vehicle's engine, along with a windscreen and windscreen wiper, mirrors, an exhaust or some sort of emission control system, and appropriate bumpers.
Anyone with any information on the 'real life Mario Kart' incident is asked to call Droitwich West police on 101, while any relevant dash cam footage can be sent to the force's website.
People can also call Crimestoppers anonymously on 0800 555 111, or visit the Crimestoppers website.