I was driving Southbound on Highway 400 when I saw the fireball appear to the left hand side of the highway and as I was driving it crossed over the highway. As it was heading out of the sky towards the ground the trail got larger as it seemed to get closer to the ground. I couldn't put an estimate how large it was but from my viewpoint it was about the size of a stop sign in the horizon. I couldn't tell you how far away I was from it but I'd say within a half mile to a mile. I just Googled did I see a meteor go down and coming and was brought to your website.