I'm almost certain that more Model 3s will be delivered this year than Bolts, but I think it is a bit too early to claim that the Model 3 is already out-producing and out-selling it. The Model 3 did have more deliveries than the Bolt in January (1875 vs 1177), but that is only because the beginning of the year is a slow for cars sales in general. There were only 2 Bolts available in my entire state, because the 2018 models haven't arrived yet. However in December the Bolt sold 3227 units, and its average monthly sales for last year (1941) were above the Model 3's highest monthly deliveries to date.

https://insideevs.com/monthly-plug-in-sales-scorecard/

Another thing I like about Tesla is the abandonment of model years being a thing. It would be great if Tesla keeps refining its vehicles, not changing the external style much for decades, and going for super reliability in the long run. No reason the electric motor and chassis can't last a million miles or more.

Model 3 production (and thus sales, since they’re all spoken for at the moment) is rapidly increasing, so I feel comfortable making that claim now. Sales figures from January reflect production rates going all the way back to early December.