Tortoise Acquisition, a special purpose acquisition company, completed the merger with Hyliion, a provider of electrified powertrain solutions, in a $1.5bn deal. Upon the closing of the transaction, the combined entity was named Hyliion Holdings and was listed on the NYSE under the new ticker symbol “HYLN.” "We are proud to have combined with Hyliion and look forward to working collaboratively with Thomas and the new board to make this transaction a long-term success. Hyliion’s compelling value proposition includes offering the lowest-cost, longest-range and highest-payload option among existing and announced Class 8 commercial electric vehicles while also delivering important net-negative carbon emission profiles,” Vince Cubbage, Tortoise Chairman and CEO.