Discription of Events: Caucasian guy with caucasian passenger speeding, revving in a loud muffled Nissan 370/Z (MA Plate CPJ33, VIN JN1AZ4EH4CM562838), tearing through the night towards Waltham Gulf station on the border of Lexington. Caucasian passenger smiling like a hyena while his driver buddy continued revving down the night time roadway.