It’s also the second quickest vehicle with number plates we've ever run on our Correvit (the GT3 Porsche was one-tenth quicker).  Down Calder's quarter mile, the little bastard stomped on some big reputations with a best pass of 13.15 and a terminal speed of 175.5 Km/h.  The new tonne came up in 5.09 and the old ton in 11.53. She-ite. 
Bust what's even more amazing is that a turbocharged car which is notoriously difficult to launch properly, managed three consecutive runs of 13.15, 13.16, and 13.16.  Normally, you'd start to get heat-soak taking the edge off, and the odd stumble off the line just to ruin any consistency. 

So what makes this ‘un different?  It’s called launch control, speed-shift, quick-shift and any number of things around the world, but it amounts to a rev limiter that kicks in when the clutch is disengaged.  A mico-switch on the clutch pedal tells the Unichip (which is a piggy-back ECU) that the clutch is in, and the Unichip then cuts the ignition over 4500 rpm. 
That means you can flat shift, because as soon as the clutch is in, the spark is cut and the engine starts falling back towards 4500 rpm.  Before it gets there, of course, you've got  the next gear slotted in and the clutch back out and off she goes again. 

The other big advantage is that your launches can be so much more consistent.  Stick it in first with the clutch in and then stand on the gas.  The revs come up to 4500 rpm and then hold there, the engine stuttering as the on-board brain cuts in the ignition in and out rapid-fire style. 

All you do then is side-step the clutch and you're away.  Big time, in fact, because the engine has whipped up some boost by then and the Rex scuttles away with all four wheels smoking.  The 60-foot times must be something else. 

Flat shifting produces the odd pop and bang from the exhaust as unburned fuel meets hot metal, but you never have the sense that you're being mechanically unsympathetic.  In fact, by dumping the clutch instead of slipping it, you're probably extending its life.