Scale proportions

I saw diecast 1:24 Porsche 911GT3 made by Kyosho.
And seems it has different body proportions from mine (Tamiya)
wheels and taillights are wrong size as well as headlights
That's interesting to compare the same model by different makers
Which has the most accurate proportions?

I don't know, But I'm glad Tamiya makes all three of my NSX kits so far, so they'll all match when complete! :D