Owner sloweste9x documented a professional hybrid-turbo build on a 2008 BMW E61 535xi wagon, then reported an ATF-line disconnection and transmission damage during early driving.
nsogiba records maintenance between track events in a largely stock E92 M3, from a rear metallic-noise fix to brake wear, added cooling ducts and later cooling-system work. Follow-up posts also describe damage to the original brake-cooling inlets.