The compound shown is 1-bromo-2-methylcyclohexane with no configuration specified. Counting configurational stereoisomers only (cis, trans and enantiomers), how many stereoisomers does it have? Give the answer as an integer.

C1 (bearing Br) and C2 (bearing $\mathrm{CH}{}_3$) are both stereocentres, but they carry different substituents, so no mirror plane can exist in either the cis or the trans isomer. Both the cis and the trans diastereomers are therefore chiral and each exists as a pair of enantiomers. Total = $2^2=4$ stereoisomers, with no meso form.