Hasbro’s 2005 Micro Vehicles was a short-lived throwback to Micro Machines, packaging small vehicles and figures together (I believe these were Target exclusives). Altogether, there were 6 OT sets, 3 RotS sets, and 3 RotS transforming vehicle playsets.
The detail varied widely from set to set, and the figures ranged from shorter than AF to tall and super-skinny. Personally, most were kinda rough, but there were a few standouts. The Droid Tri-Fighter and ARC-170 are nicely proportioned. The RotS Obi-Wan, Anakin, and Battle Droid are nice Action Fleet crossovers. The Tantive IV transforming playset has an unique Theta Shuttle, and the Invisible Hand playset has the only Grievous escape pod available (pictured below).
The best however, is the BARC speeder, which is perfectly sized to AF figures and vehicles. See the BARC speeder custom page for more info.