You can get the V4 in 97, granted on an R reg though so my mistake. They didn't get the facelift dash and Momo wheel until late 1998 when they upgraded the front bumper and grill, which is V5 and 6
Sorry bud, you're wrong on this one.
You got V4 (UK Turbo/WRX/STI) on R and very early S registrations. They we semi-crossover models, they retained the three bar bumper of earlier models, but got a facelift dashboard with a Momo wheel that had a dark badge and an early style rubber gear gaiter. Then later S registration onwards cars were V5/6 which had the two bar bumper, crystal headlights, more pronounced grill which sat over the bumper rather than tucked behind, leather gear gaiter and the Momo badge was smaller and had a lighter titanium/champagne coloured ring round Momo.
I've owned six Imprezas over the past 11 years, five of them being 98-00 Classics UK Turbos... it's rare I get to share my ultra-nerdy knowledge on them these days!!
Cheers,
Grant