I'm pretty sure it's a 2nd generation of the car name 'Will' but i just couldnt find any info on the web. Remember the odd looking car 'Will' first produced that the rear glass bends inward towards the passenger instead of the normal looking car on the road?
Are you running any oil coolers for your ER34? If not what are the normal oil temp you are getting? I'm getting circa 110 degrees on prolonged high speed runs (circa 180km/h) and it's worrysome.