2017 GMC Terrain SLE-2 Onyx Black 2.4L 4-Cylinder SIDI DOHC VVT FWD 6-Speed Automatic 21/31 City/Highway MPG Awards: * JD Power Initial Quality Study * 2017 KBB.com Brand Image Awards Reviews: * Spacious backseat that slides and reclines for added comfort; optional V6 engine makes this crossover faster than most competitors; interior stays quiet at highway speeds; supple suspension soaks up impacts on rough roads. Source: Edmunds
