They had two cars - one, the one in the video unfortunately they crashed and had to be trailered away - they then used mine to break the record and use Racelogic to tame it.
it was then used as their promo car in Europe.
The video, like most films, has some smoke and mirrors - it was the second car that did the record but they already had film from the first so they used that.
either way they took the record off the Porsche Gemballa
here's a short read - it can be translated via google https://www.blitz.co.jp/about/blitz/his_753supra.html
for the eagle eyed - i changed the lights to 'modernise it' back in like 2011 so will put the pre-facelift lights back on sometime soon