U.S. safety regulators are demanding that General Motors turn over reams of documents and other data showing what the company knew, and when, about a dangerous ignition problem that has been linked to 13 car-crash deaths.

The National Highway Traffic Safety Administration is investigating how GM handled the problem, which triggered the recall of 1.6 million older-model compact cars worldwide. GM has acknowledged it knew of the ignition troubles a decade ago but didn't recall the cars until last month.

In a 27-page order sent to GM Tuesday, NHTSA demanded pictures, memos, electronic communications, engineering drawings and other data to answer 107 questions about the case. The reply, which must be signed under oath by a company officer, is due April 3. GM spokesman Alan Adler said Wednesday that the company is cooperating.

NHTSA wants the documents to determine if GM delayed its response or withheld evidence. In either case, NHTSA could fine GM up to $35 million. Automakers are required to inform NHTSA of safety defects within five days of discovering them. Such a fine would be a record for NHTSA but essentially is pocket change for GM, which made $3.8 billion last year.

CarInsurance.com sat 1,500 licensed drivers down and asked them to look at photos of 12 vehicles made in the last decade and decide if they would be embarrassed to be seen in them. The participants were then asked to rank the three most cringeworthy, in their opinion. “All these cars are bold statements,” CarInsurance.com managing editor Des Toups said. “You either love them or hate them.” Every so often, manufacturers will take some creative license with their products. While this approach has certainly yielded some tremendous results, more often than not, the general populace will be divided into Camp Love or Camp Hate.