Complex sentence: A second Endeavour car became a servery car for the "new" Southerner in 1988, a third car was scrapped and two were extensively overhauled for the replacement Wellington-Napier-Wellington passenger train.
Split into simpler sentences: A second Endeavour car became a servery car for the "new" Southerner in 1988. Two were extensively overhauled for the replacement Wellington-Napier-Wellington passenger train.