I've been searching for a more advanced scanner than my OBII & ran across this: Auto Enginuity products scan tool AutoEnginuity® - OBD2 Scan Tool - Professional PC and PDA Diagnostics this thing can hook up to you're laptop & do all most anything. Free to all ScanTool puchases is the SpeedTracer performance analysis software for your PC which allows you to run performance analysis at your own convenience & no need to pay for dynos. It can: 0-60ft time & mph time, 1/8mile time & speed, 1/4mi time & speed, G forces, SAE Hp & Torque vs RPM graphing, speed vs time graphing (accel & decel), compute gear ratio, compute coast down times, compute volumetric efficiency, compute MPG (current & running avg), & monitor boost pressure. That's in addition to being able to read & clear stored & pending trouble codes, as well as, manufacturer specific codes, view live vehicle sensors in meter, graph or grid format, configure sensors' ranges, scaling value, alert triggers, units, & sampling rate, along with a host of other stuff. In addition, you can purchase the Enhanced Hyundai/Kia Expansion for $99.95 & access Hyundai specific sensors not covered by the OBII specification. Plus updates are available for a nominal fee. Does this sound like a winner? I've heard good feed back on the bimmerfest forum, although the Enhanced BMW Expansion is $229.95.