The Wikicars site has a lot of interesting "facts", but not all of it is correct.
In regards to the Richard Petty Connection:
"Petty was suppostedly not happy with the way the new-for-1968 Plymouth Road Runner bodystyle was aerodynamically unfriendly compared to the equivalent Fords"
TRUE, but the whole story is that Petty wanted to run one of the new Charger 500 Aerobody cars and Plymonth wouldn't allow that. They wanted to keep Petty in a Plymonth. Petty felt this put him at a disadvantage, so he went to Ford.
As a side note, most all the Ford teams wouldn't share information with Petty, seeing him as "a wolf in the hen house". He was on his own, and still won..
"The Headlight buckets and turn signals are also different"
Both FALSE and TRUE, as the buckets ARE the same, however the turn signals are different
"Although this was known as the Road Runner Superbird, the Superbird was really more of a GTX than a Road Runner (but perhaps Plymouth didn't feel GTX Superbird rolled off the tongue like Road Runner Superbird did). For example, the Superbird shared the GTX's dashboard and interior that was standard on upper-level Satellites. Its drivetrains mirrored the GTX as well, such as the 375 hp 7.2L (440 cid) Super Commando V8 was standard (instead of the Road Runner's 335 hp 383 V8), with the 390 hp 440 3x2 Six-Pack and 425 hp 426 2x4 Hemi V8s as options. A 4-speed manual (with the ultra-cool pistol-grip shifter) or 3-speed automatic transmission could be had with any engine, and the automatic could have a column or floor console shift. All Superbirds had power front-disc brakes and the split top/bottom taillights as standard equipment (again, like the GTX)"
FALSE, all Superbirds started life as Road Runners not GTXs. The GTX was an upper scale version of the Road Runner with more dress up items such as more chrome and up scale interior. The Superbird did not come with this up scale level of interior or exterior chrome. It was all standard Road Runner. And, in fact the dash is entirely different between the Satellite and the GTX/Road Runner which has the Rallye instrumentation. Also, the wood dash from the GTX was never offered on the Superbird. You could however, get an upscale SE interior on the Daytona...but again not on the Superbird. And the split top/bottom taillights were Road Runner as well, they are the same as the GTX. Only the Satellite came with no split across the taillight.
This is why Universities do not want students using Wiki.... site for reseach...some good facts and some not so good.