Multiple midsize SUVs have rated poorly for rear-seat safety in a new crash test by the Insurance Institute for Highway Safety. IIHS, a nonprofit that focuses on improving motor vehicle safety through research and car evaluations, tested 13 midsize SUVs for front crash protection, according to a news release published Tuesday. While all of the vehicles earned high ratings for driver protection in front crashes, the majority of cars tested scored poorly for the safety of passengers seated in the back, IIHS said. “All these vehicles provide excellent protection for the driver,” IIHS President David Harkey said in a statement, “but only a handful extend that level of safety to the back seat.” SUVs…