Browse 48 cars & trucks for sale in Sidney, Montana from 2 dealers. Prices range from $27,080 to $108,615. Median price is $65,160. Each listing includes pricing, high-resolution photos, and detailed specifications. Use the financing calculator on any listing page to estimate monthly payments before visiting the dealer.
Sidney has a healthy spread of 2 active dealers averaging 24 listings each, giving buyers real comparison power within a single trip.
Sidney has a moderate price spread (4.0× from cheapest to most expensive), which usually means a healthy mix of older used inventory and current-year units side-by-side.
Sidney skews heavily toward a few brands — Chevrolet alone accounts for 56% of local inventory.
Buyers in Sidney who don't find what they want locally regularly cross-shop Billings, Kalispell, Great Falls — all within the same Montana dealer network.
Cars & Trucks for Sale near
2026 GMC Sierra 1500
$69,815
Sidney, MT
2026 GMC Sierra 1500
$68,299
Sidney, MT
2026 GMC Sierra 2500 HD
$65,160
Sidney, MT
2026 GMC Sierra 3500 HD
$84,195
Sidney, MT
2026 GMC Sierra 2500 HD
$100,119
Sidney, MT
2026 GMC Sierra 2500 HD
$65,160
Sidney, MT
2026 GMC Sierra 1500
$64,585
Sidney, MT
2026 GMC Yukon
$86,790
Sidney, MT
2026 GMC Sierra 1500
$66,089
Sidney, MT
2026 GMC Sierra 1500
$68,029
Sidney, MT
2026 GMC Yukon
$92,660
Sidney, MT
2026 GMC Sierra 3500 HD
$84,864
Sidney, MT
2026 GMC Yukon
$108,184
Sidney, MT
2026 GMC Yukon XL
$102,660
Sidney, MT
2026 GMC Terrain
$45,565
Sidney, MT
2026 GMC Sierra 3500 HD
$92,895
Sidney, MT
2026 GMC Acadia
$68,035
Sidney, MT
2026 GMC Acadia
$60,615
Sidney, MT
2026 GMC Sierra 2500 HD
$108,615
Sidney, MT
2026 Chevrolet Traverse
$61,910
Sidney, MT
2026 Chevrolet Silverado 1500
$72,915
Sidney, MT
2026 Chevrolet Silverado 1500
$51,655
Sidney, MT
2026 Chevrolet Silverado 1500
$65,010
Sidney, MT
2027 Chevrolet Equinox
$37,380
Sidney, MT
Last updated: October 29, 2026
