The Napa Valley Wine Train is alive and well. October’s wildfires didn’t damage its station, historic steel Pullman cars or 18 miles of railway. The randomly scorched hillsides are far from the rails and from most vineyards. So we chose the Wine Train as a way to see and taste the legendary Napa vineyards while enjoying a good meal. From more than 18 tour options, we chose the gourmet Quattro Vino Estate Tour on a rainy Thursday in March. Spring, summer and fall have the best vistas, but winter can be cozy onboard the train, and groups are small. While our car had seating for 31, about 20 passengers were scattered among the seats. At 10:30 a.m., I scooched across a seat upholstered in plush navy…