Factual incorrect, in the past decade...
Sideways produced so far: Aston Martin Vantage LM, Ford GTLM (although both technically not GT3), BMW M6 GT3, Lambo Huracan GT3, McLaren 720s GT3.
Scaleauto produced: Audi R8 LM, BMW Z4 GT3, Corvette C7R, Porsche 911,Porsche 996 LM (although Vette & Porsche technically not GT3), Honda/Acura NSX GT3, Mercedes SLS GT3, Mercedes AMG GT3
And its not really a fair comment, all you can say is that Sideways has "ordered" more GT3 cars in the past 18 month than most of its competitiors.
First of all a lot has changed in a decade..specifically when it comes to the design of (slot)cars. The 3D(p) revolution has changed the industry as much as the copier or Desktop publishing has done for the graphic industry. Its gone Digital.
Before each (slot)car manufacturer would acquire a license from the license owner, and then have its own people physically make the masters for their injection moulding tooling. A lengthy process with several cylcles of sending pre production version to the license owner for approval. And with maybe two dozen tool/master makers world wide.
These day's most manufacturers will try to evade the whole licensing process (also because the license owners have gone mental on their fees) and just order the car from the Chinese factories. Who can by now also do the 3d modeling (ok that's very simplified). And should they not be able to do so...there are now hundreds of talented wizz kids online that start doing 3D models of cars as soon as the first presentation shots come online.
I mean, I've had a 3D file of the BMW M4 on my laptop since 2021, bought it online for €50
Secondly..Sideways "only" does 1/32nd slot cars where as Scaleauto in that same decade has developed a whole 1/24 scale range..expanded their 1/32nd range of parts and cars...and realized a ground up track system. Each new tooling requiring part of their investment budget.
Same goes for Slot.it with the investment redeveloping the Policar brand and Oxigen Digital.
Third and foremost...not all of Sideways produce seems to have gotten the same amount of detail and preparation.It does require a lot of experience transforming the 3D files into Production tooling...and with some of the Sideways cars there's were you get the impression that that process has been rushed. Last but not least quality control and prepping the white kits for shipment can be erratic.
In general Iwould agree with GD's assement of rating the Sideways cars.
Still I welcome any new (GT3) product that they announce, considering what they've done with the Gr5 cars...they can deliver the goods.
With kind regards
Tamar