The record
Extenda is the HMT's trick: a vehicle that takes a third axle when the job needs one.
Research status: draft — identification, dates or figures could not all be pinned down; the summary says what is unresolved.
Seventy ordered in February 2023 and introduced in the summer of 2024, on the HMT Extenda Mk3 and convertible between 4×4 and 6×6.



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Extenda is the HMT's trick: a vehicle that takes a third axle when the job needs one.
Research status: draft — identification, dates or figures could not all be pinned down; the summary says what is unresolved.
Catalogue fields describe the vehicle's structure and body as this registry records it. They are not certified factory measurements, and no performance figures are published here.
Base model variants
Factory colours
Codes on hover. Hex values are representative approximations of period paint unless a source states a measured value.
Registry record updated 2026-09-23 · status: draft