Looks good George. Minor comments, below.
Please note that I use an iPad Pro large, in landscape.
1. The home page images are mapped to the main menu items (good) , but the mapping may not be intuitive to the Customer. Additionally, when I click on the image the menu description text (very large font) quickly appears over top of the image.
It might be worth always overlaying the menu description text or present the text when there Customer places their mouse, pen, or finger over the picture. Alternatively, the designer can find pictures that better represent the menu mapping, like showing actual parts instead of a nice engine to represent “Parts and Accessories”.
2. I like the Parts and Accessories page, but the year links are hard to select with a finger. There are a lot of iPhones and iPads out there
and probably an easy fix, like a dynamic list of years that is presented when the Customer hovers with mouse, pen, finger over the model type. Or a bigger link font and a bit more spacing.
3. I like the rich experience and then being able to quickly switch to diagram view.