Complex sentence: The coaster was also the last to be designed by noted roller coaster designer Curtis D. Summers before his death in 1992 and it one of only two coasters that he produced with Intamin.
Split into simpler sentences: The coaster was also the last to be designed by noted roller coaster designer Curtis D. Summers before his death in 1992. It one of only two coasters that he produced with Intamin.