From the Marketplace desk of “Man, I’d really like to have one of those”: Tesla announced a new feature for its Model S line Friday called Ludicrous mode. 

For a mere extra $13,000, you can get an electric car that not only looks good — because c’mon, they’re pretty cars — but also one that goes from zero to 60 in 2.8 seconds.

That’s an improvement of four-tenths of a second from the earlier model. 

Or $3,250 per tenth of a second.

Why are they offering that? Because they can.