So here's the replacement, had it since last Saturday. The "dog wagon".
2.8 V6 250ps, Hirsch Perofrmance (SAAB warrantied tuner back in the day) approx 275ps.
Car is a GM chassis (same as Vauxhall/Opel), Car itself built by SAAB and the engine is built by Holden (engine also used in Vectra VXR/Insignia VXR).
Insignia VXR turbo is bolt on, fit an intercooler and Stage 3 map looking at like 350ps.
Car is a 2006 56 "MY07" so a whole year newer the that Leon as that was a 2005 55 "MY06" , interior on the SAAB is a huge upgrade, just feels like a more expensive car full stop (not sure how much it was new compared to the Leon)
Real shame SEAT never did an estate MK1 and also didn't bring the V6 engine over here.