New details of a deal between plaintiffs attorneys and General Motors to rewrite California's auto lemon law emerged Tuesday, revealing efforts to limit high-end litigation costs while at least temporarily avoiding a broader tort war.

The language hammered out by the Consumer Attorneys of California and GM is expected to appear in a legislative bill by Wednesday. An advance copy of amendments reviewed Tuesday showed new prelawsuit requirements for plaintiffs seeking civil penalties, as well as discovery mandates and new deadlines for actions by both parties in litigation.