in any event i have rec'd confirmation from italian alfa forum that there was a special edition TB created in partnership between fiat & wealthy japanese alfista (was imported & supported by alfa japan).
less than 100 editions, all plated & badged as "alfacorse"...here are basic changes from stock TB (alfacorse spec)
spring rate 17n/mm → 23n/mm, 35mm height down
spring rate 30n/mm 26 → ~ 53n/mm, 10mm height down, lowered on Bilsteins
-intakes under bumper larger
-intercooler pipejoints switched to aluminum from rubber
-engine remapped (more turbo boost, fuel, air) resulting in published specifications:
.bhp 235 @ 6360 rpm versus stock 201 @ 6000 and torque increased 27.6kgm/2750 → 31.0kgm / 3,000 rpm.
-dual (alfacorse) exhaust
-special alfacorse spoiler
-carbon fibre interior parts
-alfacorse bumper for dual exhaust
.................here's post of 1 on japan youtube
YouTube - ‪Alfa Romeo AlfaGTV corse '1999'‬‏
3 on the market here.....about 20% premium over TB price.
Phase 1 lhd, 235bhp & did'nt have cloth seats!