Capital One upped the ante in the competitive cash back credit card market with the launch of its Quicksilver brand this summer. In a statement to reporters, Capital One spokesman Mike Wassmer cited research that indicated consumer frustration with opt-in bonus promotions and complex reward structures.

The new line of credit cards offers a consistent, 1.5 percent cash back rebate on all purchases, with no limits and no expiration. Like Capital One's other rewards credit cards, Quicksilver makes use of the bank's online services to track and redeem cash back rebates. With no minimum redemption level, cardholders can use Capital One's "Purchase Eraser" function or simply cash out their rewards balance as a statement credit at any time.

Capital One® QuicksilverOneā„  Cash Rewards Credit Card for applicants with average/fair/limited credit

Capital One also announced a companion cash-back credit card for consumers, the Capital One QuicksilverOne Cash Rewards Credit Card for applicants with average/fair/limited credit. The card carries a moderate $39 annual fee and APR at the higher end of the typical range for rewards credit cards. According to Capital One's website, the bank, in part, classifies average credit as having a credit card from another lender for three years or less or having a limited credit history.

Using your card to purchase your fare and rent a car you have access to travel accident insurance, auto rental insurance and 24-hour travel assistance which gives you a replacement card and cash advance.