E9 Buyer's Guide

Model-specific guidance for evaluating a BMW E9 before purchase.

M1 Buyer's Guide

Pre-purchase evaluation framework for the BMW M1 road car.

Pre-Purchase Inspection Checklists

Printable and field-usable checklists for on-site vehicle evaluation.

Common Red Flags

Warning signs frequently encountered in the E9 and M1 market.

Originality Notes

How to assess factory-correct specification, paint, trim, and mechanical components.

Market & Value Notes

Contextual notes on market trends, value drivers, and restoration cost considerations. Not financial advice.