2010 Jaguar XF engine problems

2010 jaguar xkr (note that your form later only allows an xf to be clicked in order to proceed so I did that). On 2-21-10 car 1/2 full of gas. Started car and drove two blocks when suddenly the engine shutoff and amber engine symbol ("engine malfunction") light came on. Able to move steering wheel a little (no power steering) and coasted to stop--doing about 30 miles per hour when the engine suddenly and without warning shut off. Waited a couple of minutes and tried to start and would not restart.

Was driving down interstate and light came on saying coolant low, air conditioner was still blowing cold, but I turned off air, maybe 3 minutes later, loss acceleration power, black smoke billowing out of pipes and under hood and light came on saying low performance turn engine off. Immediately pulled car on side of highway. No warning car was running hot. Car was disabled would not start later and computer reading still registered cool.