The first picture shows the new design of the Sport Tuned that came into production in 2019. The old, black design, used for 29 years is shown in the second picture.
There has been a lot of debate on how many turn the Sport Tuned has. Some claim it's been 23T at some point, while others believe it's only ever been 27T.
The first kit to be supplied with the Sport Tuned motor was 58085 Avante 2001, later many more kits include this motor.