One could postulate that the Transmetal Driver could be a derivative of Vector Sigma.

Being that the Vok appear to of achieved ascendance and hence must've existed as a physical race for quite some time before hand, it is entirely possible that the Vok could've had some form of contact with Cybertron during it's 1st Golden Age, or at least it's early years, and having being presented with the unfathomably complex and inspiring Vector Sigma and it's Key.

The Vok and the Cybertronians might've had some truly great relations just for the following to occur, but I imagine that they would've been so taken back by what was before them that it inspired and drove them as a race to achieve a level of intelligence, be it individually or collectively, that would endow them with the ability to construct such an object themselves which creates life... i.e. they believed that whoever created this 'computer' was clearly a God just by demonstration, let alone definition and subsequently set out to achieve an equal standing if not greater.

Now, one might assume that for whatever reason the original Vok race lost contact with the Cybertronians, considering anything could happen when you're dealing with universal time scales, leading them to approach their goals independently and eventually their ascendance of evolution.
All along continuing that immense, multi-generational journey towards the creation of the Transmetal Driver and the ability to seed planets with Energon, as it would seem that they were experimenting with the creation of life but attempting to adapt or manipulate said life with the purpose of achieving a sentient life form that resembled that of an ancient species they'd encountered so many, many eons ago.

This IMO gives reasoning behind why when the Predacons and Maximals are found to be on the planet, the Vok had no records of them. Imagine their surprise to find that these Aliens were the descendants of that ancient race they'd encountered so long ago, but more alarmingly - What that ancient race had eventually evolved towards, what that eventually lead to and how much of a contamination this potentially presented to the 'Experiment'?...
They would have to either eliminate the infection in order to try and preserve what had been started or, regrettably, end the experiment and start over.

My mind runs wild with what could possibly occur if the Transmetal Driver were to be introduced to Vector Sigma and it's Key? - Could this be the reason, cause and effect that lead to the Transtech era?