How does this product compair to the Garmin ecoRoute HD program that is used with various Garmin GPS Models? It seems to have a lot of the same features and also lets you clear codes too! The upside is that your GPS doubles as an OBD II Diagnostic Scanner, but the downside is the price is $99.99 + S/H. What are the size dimensions of this the UltraGauge display unit? I will be thankful for any info that will help me decide which to buy!
Thank You!