Europe stocks close higher amid earnings bonanza; Volvo Cars down 10% / Volvo to cut up to 800 U.S. jobs as Trump's tariffs bite / Volvo to cut up to 800 workers over Trump's tariffs / Hakan Samuelsson returns to scene of his redemption in bid to revive Volvo / Samsung's Digital Key technology now works with Volvo and Polestar EVs / AI company Waabi partners with Volvo on autonomous trucks / Volvo is teaming up with a Nvidia-backed firm to deploy more self-driving trucks / Waabi and Volvo team up to build self-driving trucks at scale / Self-driving buses in Sweden? Volvo thinks so / Volvo announces pricing for delayed EX30 compact SUV