Redline Rig

Redline Rig enters the battlefield tapped. It
doesn't untap during your untap step.
{1}{u}{r}: Untap Redline Rig
{t}: Add {u} or put a research counter on
Redline Rig.
{r}{r},{t}: Add {e} or create a Nitro artifact token
with "Sacrifice this permanent: target creature or
vehicle gains haste and trample until end of turn.
-Vehicles cost {1} less to cast for every research counter on Redline Rig.