Yes, C172, I bought the aircraft in May two years ago. The Bonanza is a 1973 V35, equipped with a turbo-normalized (which just means an add-on turbo kit installed on a piston-engine), 285 HP engine. Engine and paint are new, avionics are relatively new, but the interior is tired.
At 10,000 feet on a standard day it'll do about 185 kts true airspeed and at FL190 it'll do 195 kts true airspeed, all at at about 15 - 16 gallons per hour.
The fastest groundspeed I have seen was when I was flying back from west to east at FL190 at somewhere around 270 kts. Thank the strong winds aloft for that.