What component or system failed or malfunctioned, and is it available for inspection upon request? -cylinder 1 misfiring-diagnosis fluid intrusion into combustion chamber likely due to faulty head gasket or warped cylinder How was your safety or the safety of others put at risk? -car misfiring affected startup acceleration and ran rough (hesitation). Has the problem been reproduced or confirmed by a dealer or independent service center? -yes, confirmed diagnosis by independent service center first and problem reproduced. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -yes, inspected with a scope by independent service center. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? yes, check engine light came on intermittently. brought in within a day of it appearing. diagnostic computer check done & per the pulled codes, followed recommended repairs and had M spark plugs and coil packs all replaced. 2 days later check engine light came back on. Again experienced difficulty in startup and rough running engine. As of this writing, vehicle is in the shop awaiting further repairs.