FIKI, Dual Vac Pumps, Dual Alternators, Speedbrakes, YD, Pulse Lights and only sips 12.5 USG per hour.

I think the OP wanted more space, not less space… 
Other than that, these Encore-upgraded 252s sure are nice, as @terbang will confirm. I think he has 405 litres fuel capacity though, which would be better than 286 litres, with today’s worsening Avgas situation even in Europe.