You're not missing a whole lot... it's just a boost gauge with a needle going up to around 20 and an engine going rrrrrRRRRRRRRRR in the backround.
2016 WRX STi Limited (current)2001 A4 1.8tqms (donated)1991 GVR4 #1933 (sold)old.dsmregistry.com/detail.php?carid=218 (dismantled)