1. on track testing, is still testing, not 'real world' races and sure it is important, once you get down to a car on the road and drivers you are into a super complex scenario, far beyond measuring single things which is more like what dynamic range is
A race track is hardly a lab. It's where you see if all the theoretical elements of the car you designed on computers, on the dyno, and in the wind tunnel stands up in real life. Track testing is very much a real world scenario, as it eliminates all the other factors outside of vehicle performance (driver skill, pit crew performance, tire degradation, pit strategy, good ol' luck) that can affect which position a car finishes the race in. How quickly you can bust off a single lap in qualifying is largely viewed by engineers as the ultimate yardstick of performance.
2. you can bet all the teams would be wayyyy behind where they are if not for lab tests, so many more parts and specific little bits would take so much longer and waste sooo much more money to develop
Very true, which validates the importance of off-track R&D. Like I said before, the trick is finding an ideal balance of lab and track testing
Ferrari - along with some camera tech heads - seem to lack this balance
But the low ISO dynamic range is wayyy behind Exmor sensors though and even quite a bit behind the best non-Exmor stuff Nikon is doing (D4), I really thought they'd have at least gotten it to D4-level.... I do find that quite disappointing. For the landscape-type shooter, the 5D3 really adds virtually nothing over the 5D2 (for stuff relying on AF or better body response it should be much better than the 5D2 though).
That's fair enough. Let's just say that the D800 is the king of resolution and DxO DR, while for some the 5DIII is a better all-arounder. I can see how the 5DIII might be a disappointment if you're a landscape shooter, but then again I can see how the D800 would be a disappointment if you're a Nikonian who was expecting it to be a baby D4. At any rate, both are great cameras that will far exceed the abilities of many photographers.
Based on DxO perhaps Canon is falling behind on sensor tech. Maybe Nikon stole all of Canon's best engineers
Who knows. I supposed the 1Dx is the wild card right now, and maybe it will have some pleasant surprises up its sleeves for the pixel-peeping faithful