Uh, no. Price similarity never drives segment perception for actual buyers. Please find me a person that is actually cross shopping a F-Type and GT-R. And you'll also find that people that are making those threads aren't the smartest, and generally have no idea what they want or anything about cars in general.As Big Kaz mentioned, price drives a big part of perception and satisfaction. Look at the different enthusiast forums, you'll see several threads justifying/asking purchases of a "sports car vs GT" or "sports sedan vs luxury SUV". Whether or not the F-Type "beats" the M6 and S550 is secondary to a lot of people, image is where the Jag takes a big hit.
In some way, this parallels the Camry/Accord vs Hyundai/Kia argument. The Korean cars are in many ways "better", but a lot of people remember the Hyundai Excel of the 80s/90s, so to keep up, the Sonata/Optima have to price their cars a little lower and/or offer 10 year warranties.
And I highly doubt people make decisions on what to buy based on the car maker's history from 20 years ago. Recent history? Yes. F*cking 20 years ago? No. If anyone objects to this feel free to comment.