It is an affirmative defense to any claim under this chapter that: [PL 1983, c. 145 (NEW).]
1. Lack of impairment. An alleged nonconformity does not substantially impair the use, safety or value of the motor vehicle; or
2. Abuse. A nonconformity is the result of abuse, neglect or unauthorized modifications or alterations of a motor vehicle by anyone other than the manufacturer, its agents or authorized dealers since delivery to the consumer.