It's not like they re-invented the telephone. When I go on a bike ride, my phone, in my pocket, is able to track my progress, speed, average speed, ascent and descent. All they did was write some code to take GPS info and make a replay out of it. Not exactly ground-breaking stuff.
They actually made it worse by forcing you to buy an accessory and from what I read, an accessory that only works in the Toyota 86.
Considering many players don't own a Toyota 86, and don't live in Japan, this feature should've been a "Japan only" feature. So it's not that we're being negative, it's just completely useless.
Out of all GT6 users, how many live in Japan? Out of those, how many own a Toyota 86? Out of those, how many would spend $1,000 on an accessory that works with GT6, and out of those, how many would travel to and race their car on one of the three tracks it works on at the moment? That number has to be below one percent.
When you factor in that the accessory isn't due out until June (someone posted that date), this is a completely useless feature for 100% of GT6 users.