A "motor sport spectacular," featuring hot-rod truck mud racing, a monster truck challenge, the championship indoor motocross and - one of the most explosive acts in the arena industry - Allison Bly, billed as "The Dynamite Lady," will be presented Friday and Saturday, Jan. 11-12, at 7:30 p.m., and Sunday, Jan. 13, at 2 p.m. in the Salt Palace arena.

In the USA Monster Truck Challenge, some of the biggest monster trucks in the nation will compete, including Bigfoot, Grave Digger, the Keystone Kruncher, Taurus, Show-n-Off and Troublemaker.The hot-rod truck mud racing will feature the fastest, unlimited class mud racers in the nation competing for points. Drivers in this competition rely on the raw power of their vehicles to outdistance their foes.

Allison Bly, who's performed before in the area at stadium exhibitions and other shows, climbs into a boxful of explosives ("the coffin of doom") which is then detonated.

Tickets are $13 and $15 for adults and $5 for children 12 and under. They're available at the Salt Palace box office, all Smith'sTix outlets and at the Huntsman Center box office at the University of Utah. To charge tickets by telephone, call 467-5996.