In comparison to the prior generation of DMUs, which typically used a pair of engines for each power car, the new generation DMU would only use a single engine per car; sufficient cooling was also provided that even with one failed engine, a two-car unit could continue to perform typical services without incurring a major performance deficient.
The new generation of DMUs differs from previous models by using a single engine per car instead of a pair. This design allows for continued operation even if one engine fails, as the remaining engine provides sufficient cooling and maintains normal service levels.