Not too concerned about space, here.
It's obviously cramped, but the only "main" reason anyone would want more space would be for aftermarket turbochargers. You can guarantee there will be downpipe upgrades, intercooler upgrades and the like. The majority of people who purchase this car aren't going to be looking to do a turbo swap, they'll be interested in tunes and bolt ons.
I'm more excited to see what the stock turbos/internals can handle with a simple tune.
If the estimated power is ~450hp, we can expect ~382rwhp. If this car can reach 500rwhp with a tune, bolt ons and pump gas, this thing is going to be ridiculous.
PAST 2002 GGP Lexus IS300 - RMM - HKS - Rays
PAST 2007 Black Sapphire E90 335i - BMS - JB+
PAST 2010 Jerez Black E92 M3
PAST 2012 Mineral White E92 M3
CURRENT 2013 Singapore Grey F10 M5