Toyota Prime or BMW i3-REx

Source Google: "Idaho National Laboratory advanced vehicle testing activity"

	model (last three VIN)	operating cost/mi	Ownership cost/mi
1	2013 Prius Plug-in (237)	$0.09/mi	$0.28/mi
2	2013 Prius Plug-in (663)	$0.10/mi	$0.30/mi
3	2013 Prius Plug-in (660)	$0.10/mi	$0.30/mi
4	2013 Prius Plug-in (661)	$0.10/mi	$0.32/mi
5
6	2014 BMW i3 (626)	$0.21/mi	$1.63/mi *
7	2014 BMW i3 (486)	$0.21/mi	$1.64/mi
8	2014 BMW i3 (658)	$0.21/mi	$1.68/mi
9	2014 BMW i3 (655)	$0.23/mi	$1.84/mi
10
11	2014 BMW i3-REx (162)	$0.20/mi	$1.19/mi
12	2014 BMW i3-REx (436)	$0.21/mi	$1.27/mi
13	2014 BMW i3-REx (557)	$0.24/mi	$1.58/mi
14	2014 BMW i3-REx (410)	$0.22/mi	$4.22/mi *

• BMW i3 battery only
• BMW i3 REx suffered battery failure, no details, yet.

There is a good reason why we went BMW i3-REx, utility. We have already met the service miles of these BMW i3 BEVs in just under a year. The key to low cost of ownership is to drive a lot of miles. The BMW i3-REx did more miles than the BMW i3-BEV.

Bob Wilson