Cramer's lightning round: 'I think General Motors is radically undervalued'

• It's that time again! "Mad Money" host Jim Cramer rings the lightning round bell, which means he's giving his answers to callers' stock questions at rapid speed.

Salesforce: "Salesforce, up big today and yet it still has a lot more to go."

General Motors: "I think General Motors is radically undervalued."

Enterprise Products Partners: "You're not going to get better than that, which just shows you exactly how bad that business is. ... I do not want you to go near this group."

ContextLogic: "When they blow up like that, you've got to wait for the quarter. ... Let's wait."

Crispr Therapeutics: That is a real biotech company. I think it's a great company. ... I think it's still undervalued, believe it or not."

Hyliion: "I don't know why it didn't catch fire today with the electric companies. ... I don't now what's going on, it better catch fire soon, or people are going to get bored."

Exact Sciences: "I like [CEO Kevin] Conroy, I like Exact Sciences."

Goodyear Tire & Rubber: "Sell."

Disclosure: Cramer's charitable trust owns shares of Salesforce.

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