Question: The Mercedes-Benz R107 and C107 are the second longest single series ever produced after a class of vehicle manufactured by who? 
Sentence (from "Mercedes-Benz R107 and C107"): They were sold under the SL (R107) and SLC (C107) model names as the 280 SL, 280 SLC, 300 SL, etc. up to the 560 SL.
Relevant evidence: No