My experience with the 3D Maxpider mats in a 2013 Volvo C30 Polestar, 2015 VW Touareg TDI, 2020 Ford F-150 Raptor, and 2022 Toyota Highlander has been very positive. Weathertechs are slippery to the point of being dangerous, and they started making them much thinner around 2014. What I like about the 3D Kagu mats is that the rubberized top coating is very resistant to wear but also not slippery. After 3 years in the manual transmission Volvo there was no wear, we wore through the stock mat in 6 months under the clutch and gas pedals. You mention Velcro pieces on the back of the V2 Tesmanian mats, the entire bottom of the 3D mats are a Velcro type surface that grabs the carpet. I have also preferred the higher sides and increased dead pedal coverage on the 3D. 3D’s pricing does seem to have gotten absurd, I was paying $175-$200 for a full set on previous vehicles, less than Weathertech or Husky. I would rather pay a little more than have them cheapen up the product like Weathertech has.
I don’t have any experience with the currently available products for the Tesla since I haven’t purchased yet.