CHICAGO  (MarketWatch)—Car buyers, you have been warned: General Motors’s  unconventional money-back guarantee and haggle-free pricing mark the  dawn of a new era in the annual summer inventory clearance race. 
   
 “Car  manufacturers don’t want to go back to that bad habit of giving cars  away,” said Jesse Toprak, vice president of market intelligence at  TrueCar.com, an automotive research site. “If the product is good  enough, you shouldn’t have to discount it.” 
   
 That’s true for  iPhones, Coach bags and Tiffany jewelry, but has rarely been the case  for cars, the prices of which are deeply discounted when it’s time to  clear out the old models to make room for the new. That’s typically in  late summer and early winter. 
   
 But GM’s  (US:GM)   sales-incentive program as well as Chrysler’s “no payments for 90 days”  promotion—both unveiled in commercials during Major League Baseball’s  annual All-Star Game—signal that the sales success car dealers have  found in recent months will keep them from slashing prices to the bone.  Instead, they will be more innovative in how they lure you onto their  showroom floors. 
   
     
     
  New perks    
 “This whole incentive game has really changed recently,” said Jessica Caldwell, senior analyst at Edmunds.com. 
   
 “The  amount of cash offers is not as high as it was a few years ago,” she  said. “There’s a lot more financing and leasing deals because credit is  so cheap now.” 
   
 So don’t expect big price slashing,  employee-pricing deals or buy-a-car-get-free-insurance this year. Even  cash rebates, which are still available, will be limited. 
   
 GM’s  “love it or return it” program gives consumers up to 60 days to return  any 2012 or 2013 Chevy car they bought at a participating dealer. There  must not be more than 4,000 miles on the odometer or more than $300 in  damage, which is basically a scrape or dent. 
   
 The “total confidence  pricing” deal is the no-haggle pricing on 2012 vehicles that  significantly cuts the cost from manufacturer’s suggested retail price  to the supplier pricing, which is the same price you would get if you  worked for one of the car maker’s suppliers. Both deals expire Sept. 4. 
   
 Chrysler’s  gimmick is a “no payments for 90 days” campaign on Chrysler, Jeep,  Dodge, Ram Truck and Fiat models through the end of August. The vehicles  must be financed through Ally Financial. 
   
 Car makers are in a rare  sweet spot now after years of having sales clobbered by the recession,  fluctuating gas prices and a mostly lackluster lineup of new car models. 
   
 Consumers are buying    
 In  June, the industry’s U.S. sales blew the doors off expectations by  jumping 22% to post the best sales month since 2007. Even truck and SUV  sales ran well, perhaps because of falling gas prices.