The 2019 Blazer is based on the regular-wheelbase GM C1 platform. The architecture is shared directly with the second-generation GMC Acadia and first-generation Cadillac XT5.
The longer wheelbase version of the C1 platform underpins the second-gen Chevy Traverse and Buick Enclave. The longer variant of C1 is also expected to underpin the upcoming Cadillac XT6.
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