Car Stall problems of the 2004 Land Rover Freelander

Days after purchasing my 2004 Freelander, the "check engine soon" light came on and the car stalled out on me. The rpm's go all the way up but the accelerator won't allow to drive past 25 mph. This has happened to me continuously since purchasing it. I have had my car serviced by Land Rover many, many times and they can never figure out what the problem is. They tell me that the cold weather causes it or that I am shifting the gear into 2nd!! this problem has caused me extreme hardship. I have literally driven rental cars for months at a time as they play games with me. This defect caused me to have an accident on highway 405 in CA and it was extremely frightening. I was driving at 60 mph when the car began to buck and stall out. The rpm's were all the way up but I couldn't accelerate past 25 mph. This caused a truck to smash into me as I tried to pull over on the side of the highway. Despite my numerous complaint to the manufacturer no one ever resolved this issue. My car's "service engine" light has been on for a while now and it caused me to fail my inspection, due to emissions. I have spent thousands of dollars on rental cars while Land Rover took their time to "repair" my car. Each time they have a different story. . . It's an electric light out, it's the alternator, it's the lifters, it's a broken hose, etc. They have never repaired this stalling issue and now my car is not turning on most of the time. I don't have the money to fix this piece of junk anymore. I am going broke from this car. Land rover in newport beach, CA "lost" my car for a month after I had it towed there from the accident and then refused to help me. They said the tow truck driver never brought it. The time before that they said the tow truck driver lost the keys so they couldn't fix it. I had to have the police department go down there, as I was going to have to file a stolen car report. How ironic is it that the car magically appeared in their lot at that exact time.