DETROIT (AP) — Despite a small dip in U.S. vehicle sales, General Motors' first-quarter net income rose more than 25% on strong deliveries of pickup trucks and other higher-profit vehicles. The Detroit automaker said that while its average sales price per vehicle was down slightly from last year at just under $50,000, pickup sales remained strong, and it's not seeing the price erosion across its lineup that other companies have experienced. GM on Tuesday said it made $2.97 billion from January through March, with revenue increasing 7.6% over the same period a year ago to just over $43 billion.