DRIVE LOCALLY, COMPETE GLOBALLY!
Take on some of the best competition the world has to offer by racing against your friends and foes over a LAN or modem. Add a little 'commentary' of your own, striking fear into the hearts of your competitors (if you can) with real-time instant voice communications via your truck's CB radio!

A little mud lore:
Mud
noun wet soft earth; a mixture of earthy or clayey particles with water; a similar mixture with certain added chemicals used as a lubricant in drilling gas- or oil-wells; something worthless or contemptible; vilification, abuse, slander, thought of as sticking or clinging like mud.
verb transitive to bury in mud; to clog with mud; to plaster with mud; to make dirty; to make turbid; to supply with mud.
verb intransitive to hide in the mud.
mudd'er noun (slang) a racehorse that responds well to muddy conditions.
mudd'ily adverb.
mudd'iness noun.
mudd'y adjective foul with mud; containing mud; covered with mud; of the nature of mud; like mud; mud-coloured; cloudy, murky; confused, befuddled; stupid.
verb transitive and verb intransitive to make or become muddy:
mudd'ying present participle; mudd'ied past tense past tense and past participle.
mud'bath a bath in mud, especially as a medical treatment; an outdoor event taking place in muddy conditions (colloquial).
mud'-boat a board or sled for conveyance over mud-flats or swamps; a boat for carrying away dredged mud.
mud'cat (US) a name given to several species of catfish.
mud'-clerk (obsolete US) an assistant purser.
mud'-cone a cone formed by a mud volcano.
mud dauber a wasp of the family Sphecidae that deposits its eggs in individual cells constructed of mud.
muddy-head'ed adjective confused, muddled.
muddy-mett'led adjective (Shakespeare) spiritless.
mud engineer a person overseeing the use and supply of drilling mud on a gas- or oil-well.
mud'fish a fish that burrows in mud, especially a lung-fish.
mud'flap a flap fixed behind the wheels of a vehicle to prevent mud, etc, being thrown up behind.
mud'flat a muddy stretch of land, especially near a river mouth, submerged at high water.
mud'guard a curved hood fixed over a wheel to catch mud-splashes thrown up by it.
mud hen any of a variety of water-birds, such as rails, coots or gallinules, that inhabit marshy places.
mud'hole a hole with mud in it; an opening for removing sediment from a boiler, etc.
mud'hook (slang) an anchor.
mud'lark a name for various birds that frequent mud; a person who searches the banks of tidal rivers for scrap metal, ropes, etc, to sell; a street urchin (archaic slang); a mudder (Australian slang).
verb intransitive to work or play in mud.
mud lava a stream of mud from a volcano.
mudlogg'ing / mudlogg'er a person who looks for traces of oil, gas, etc in mud excavated from a borehole.
mud'-lump a raised area of mud, often giving off gases, as in the Mississippi delta.
mud minnow a small fish (Umbra) related to the pikes.
mud'pack a cosmetic paste for cleansing the skin, containing fuller's earth.
mud pie a small, moulded mass of mud made to play with by children; an insult or calumny hurled at someone; a rich dessert of chocolate and coffee mousse on a pastry base (North American).
mud pump a pump used in drilling deep holes (eg oil wells) that forces thixotropic mud to the bottom of the hole and flushes out rock chips.
mudpuppy (US) the axolotl; an aquatic salamander (genus Necturus) of N America that retains certain larval features, including external gills. mud'scow a flat mud-boat.
mud skipper a goby found in Africa, Japan, etc, able to remain out of water and skip about on bare mud using its fins.
mud'slide a slippage of a mass of mud down a hillside, etc.
mud'slinger / mud'slinging vilification or malicious slander intended to discredit another.
mud'stone an argillaceous rock not distinctly fissile.
mud turtle a freshwater turtle of the genus Kinosternon, found in N and Central America.
mud volcano a vent that emits gas and mud, often forming a conical mound.
mud'wort a small mud-growing scrophulaceous plant (Limosella aquatica).
mud wrestling competitive wrestling in an arena with a floor of wet mud. clear as mud not at all clear.
his name is mud, , etc, he, she, etc, is very much out of favour.
mud in your eye good health (used as a toast).
throw mud at or fling mud at or sling mud at to insult, to slander.

[Cf Old Low German mudde, Dutch modder]