Buying advice Tips for Troll or 9-5 in general

2002er 2,3 Troll with 280 hp, automatic, 100 tkm: Limo, where are the weak points and/or what exactly must be taken into account when inspecting? Torque? vMax? Consumption with a controlled driving mode, approx. 85% motorway speed-limited with cruise control and the rest most urban traffic? Reliability? How are the seats (i.e. frequent drivers)? Or is there perhaps a more harmonious version 9-5 with automatic than the one with 280 hp (but should vmax of 230 km/h be possible)?