So, you might ask, what’s new in the IMSA SportsCar Championship? Not much, it would appear. The first ‘regular distance’ event of 2025, at two hours and 40 minutes, began and ended in precisely the same way as the previous three. Dries Vanthoor once again started his BMW M Hybrid V8 from pole at Laguna Seca and, when the chequered flag fell, the pair of Porsche Penske Motorsport 963s emerged clearly ahead of the field, albeit this time with Matt Campbell and Mathieu Jaminet beating Felipe Nasr and Nick Tandy.
But as is usually the case in IMSA competition, that doesn’t tell the full story.
For starters, the rulemakers attempted to spice things up a little. The 963s’ minimum weight remained unchanged at 1049kg, but maximum power was trimmed from…