That sucks... I just can't buy that your not that knowledgeable about cars? Most that have a S2000 know the car, and I would assume about other cars to say the least. You bought at best an impreza, and WRX's/STI's don't have "bulges" in the hood, but rather a hood scoop for the inter cooler. Can you take a few pic's and post the car up, so we can help you out with this mystery?