In-house tuning

In-house tuning is a type of company either entirely or partially owned by a manufacturer (the other half usually owned by a motorsport organisation) that produces tuned variants of production vehicles under a different marque, usually fitting higher output engines, body kits, interiors to pre-assembled cars, however many may integrate or partially integrate components off the parent organisation's assembly line. This process for the most part replaced the custom production order process from large manufacturers, with more advanced options and trim levels available from an in-house tuner. [1][2]