Nokia Drive+ for WP8 Lumia devices has been updated with new features like “Battery Saver Mode” and “one tap access to your current position and also distance” from current position. The full changelog goes like this,
Battery Saver mode: Turns off GPS after the app is sent to background (except when in guidance mode)
Back to my position and distance measurement: Get one-tap access to your current position while exploring/panning the map; also see the distance from your current position
The updated application can be downloaded from “Windows Marketplace” on your Lumia devices.