What is the difference between Avis Super CDW, Hertz Super CDW, Europcar Super CDW and Insurance4carhire.com’s policies? The Avis Super CDW, Hertz Super CDW and Europcar Super CDW (Super CDW is also known as the Excess, Non Waiver or the deductible) generally cover Excess on Damage and Excess on Theft. Damage to windows, tyres, the undercarriage and the roof is generally excluded. Insurance4carhire covers: Excess on damage, excess on theft and damage to: windows, tyres, the undercarriage and the roof.