are you sure it dose not mean direct current grin
did see this today not 100% confirmed The future of SRT performance vehicles for Dodge and other former FCA brands seems to be rather uncertain
“In February 2021, all of the core elements of the SRT performance engineering team were integrated into Stellantis’ global engineering organization.

This action will have the two-way benefit of ensuring that our brands’ SRT and performance-focused product offerings continue to meet the highest quality standards and expectations, while delivering key learnings from motorsports and other high-performance-technology applications across a wider mix of our company’s product lines.

These products have delighted enthusiasts for nearly two decades, and Stellantis will continue to sell and develop the next generation of Dodge//SRT-branded vehicles, as well as Jeep and Ram vehicles that utilize high-performance SRT technology.”
https://autos.yahoo.com/srt-division-no-more-173000104.html